17能整除下列各数吗？68

请根据程序的运行结果，推断程序空缺处a的最大值、b的最小值、c和d的值。 A: -17；17；3；2 B: -17；18；3；2 C: -17；18；2；3 D: -17；17；2；3

求微分方程[img=143x21]17da5f14490e50e.png[/img]的通解,实验命令为(). A: dsolve(D2y-2*Dy+5*y=sin(2*x),x)ans =exp(x)*sin(2*x)*C2+exp(x)*cos(2*x)*C1+1/17*sin(2*x)+4/17*cos(2*x) B: dsolve('D2y-2*Dy+5*y=sin(2*x)','x')ans =cos(2*x)*(sin(4*x)/17 - cos(4*x)/68 + 1/4) - sin(2*x)*(cos(4*x)/17 + sin(4*x)/68) + C1*cos(2*x)*exp(x) - C2*sin(2*x)*exp(x) C: dsolve(D2y-2*Dy+5*y=sin(2*x),'x','y')ans =exp(x)*sin(2*x)*C2+exp(x)*cos(2*x)*C1+1/17*sin(2*x)+4/17*cos(2*x)

下面表达式的值为true的是。 A: “17”===17 B: “17”==17 C: “17”！=17 D: “17”!==17

下列表达式,哪个返回值为true? A: "17"===17 B: "18"==17 C: "17"!=17 D: "17"!===17

某班30名学生，他们的年龄如下：16 18 15 17 17 19 16 17 18 1717 17 16 16 15 17 17 16 17 1718 17 16 17 17 16 18 17 17 16

A．61.31.1.0/17 B．661.31.100.0/17 C．1.31.2.0/17 D．61.31.128.0/17

求不定积分[img=132x48]17da6537fc8dad6.png[/img]； （ ） A: -(4*(cos(x/2)/2 + 2*sin(x/2)))/(17*exp(2*x)) B: (4*(sin(x/2)/2 + 2*sin(x/2)))/(17*exp(2*x)) C: (4*(cos(x/2)/2 + 2*sin(x/2)))/(17*exp(2*x)) D: (4*(cos(x/2)/2 + 2*cos(x/2)))/(17*exp(2*x))

【单选题】17题 A. 17题A B. 17题B C. 17题C D. 17题D

<p style="font-size: medium;white-space: normal;line-height: 1.25px"><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">8.</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px"><span style="font-family:宋体">下列酯在酸性条件下发生水解反应的速度次序是</span></span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">(&nbsp; &nbsp; &nbsp; )</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px"><span style="font-family:宋体">。</span></span></p><p style="font-size: medium;white-space: normal;text-indent: 32px;line-height: 1.25px"><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">①</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CO</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">2</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">C(CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">)</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&nbsp;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">②</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">.CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CO</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">2</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">2</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&nbsp;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">③</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">.CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CO</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">2</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CH(CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">)</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">2</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&nbsp;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">④</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">.CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CO</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">2</span>}<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">CH</span>_{<span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px;vertical-align: sub">3</span>}</p><p style="font-size: medium;white-space: normal;text-indent: 32px;line-height: 1.25px"><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">A.</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">④</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">③</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">②</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">①</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&nbsp;&nbsp;&nbsp;&nbsp;B.</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">①</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">③</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">②</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">④</span></p><p style="font-size: medium;white-space: normal;text-indent: 32px;line-height: 1.25px"><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">C.</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">④</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">②</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">③</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">①</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&nbsp;&nbsp;&nbsp;&nbsp;D.</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">①</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">②</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">③</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">&gt;</span><span style="font-family: 宋体;line-height: 20px;color: rgb(17, 17, 17);font-size: 16px">④</span></p><p><br/></p>