17da426f4cb2265.jpg,计算[img=23x22]17da426f58ddf0c.jpg[/img]实验命令为( ). A: f=diff(log(x),3)f=2/x^3 B: syms x; f=diff(log(x),3)f=2/x^3 C: syms x;f=diff(logx,3)f=2/x^3

17e0a756f3d6e2a.jpg,计算[img=23x22]17e0b849ab0b36c.jpg[/img]实验命令为( ). A: f=diff(log(x),3)f=2/x^3 B: syms x; f=diff(log(x),3)f=2/x^3 C: syms x;f=diff(logx,3)f=2/x^3

计算 [img=97x44]17da60e3e6579e9.png[/img]实验命令为(). A: limit(log(x^2-3)/(x^2-3*x+2),2)ans =4 B: syms x; limit(log(x^2-3)/(x^2-3*x+2),2)ans =4 C: syms x; limit(logx^2-3/(x^2-3*x+2),x,2)ans =4

计算[img=88x44]17da60f638f2d11.png[/img]实验命令为(). A: limit((x^2+log(x))/(x*log(x)),+inf)ans =Inf B: syms x; limit((x^2+logx)/(x*log(x)),x,+inf)ans =NaN C: syms x; limit((x^2+log(x))/(x*log(x)),x,+inf)ans =Inf

单室模型静脉注射给药，体内血药浓度随时间变化关系式为（）. A: C=k0(1－e-kt)/VK B: logC’=(-k/2.303)t’＋log(k0/VK) C: logC’=(-k/2.303)t’＋log[k0(1－e-kt)/VK] D: logC(-k/2.303)t＋logC0 E: logX=(-k/2.303)t＋logX0

单室模型静脉滴注给药达稳态后停止滴注的血药浓度随时间变化关系式 A: logC=C0(1-e-kt)/VK B: logC’=(-K/2.303)t’+log(k0/VK) C: logC’=(-K/2.303)t’+logk(1-e-kt)/VK D: logC=(-K/2.303)t+logC0 E: logX=(-K/2.303)t+logX0

单室模型静脉滴注给药达稳态后停止滴注血药浓度随时间变化的关系式（） A: logX＝(－K/2.303)t＋logX0 B: logC＝(－K/2.303)t＋logC0 C: logC′＝(－K/2.303)t′＋log(K0/VK) D: logC′＝(－K/2.303)t′＋log[K0(1－e－KT)/VK] E: C＝K0(1－e－KT)/KV

单室模型静脉滴注给药达稳态后停止滴注血药浓度随时间变化的关系式为（）。 A: logX=(-K/2.303)t+logX0 B: 10gC=(-K/2.303)t+logC0 C: logC′=(-K/2.303)t′+log(K0/VK) D: 10gC′=(-K/2.303)t′+log[K0(1-e-KT)/VK] E: C=K0(1-e-Kt)/KV

【单选题】NO 2 、NO 2 - 、NO 2 + 键角大小关系正确的是 。 A. NO 2 > NO 2 - >NO 2 + B. NO 2 + >NO 2 >NO 2 - C. NO 2 - > NO 2 >NO 2 + D. NO 2 + > NO 2 - >NO 2

求定积分[img=179x43]17da65388c0b1ca.png[/img]； （ ） A: log(2^(1/2) + 1)/2 + 2^(1/2)/2 B: log(2^(1/2) + 1)/2 - 2^(1/2)/2 - 1/2 C: log(2^(1/2) + 1)/2 + 2^(1/2)/2 - 1/2 D: log(2^(1/2) + 1)/2 + 2^(1/2)/2 + 1/2