f(x)=x(x+1)(x+2(x-3), f'(0)=( ) A: 0 B: 1 C: -3 D: -6
f(x)=x(x+1)(x+2(x-3), f'(0)=( ) A: 0 B: 1 C: -3 D: -6
以下程序的执行结果是()。#includelongff(intn){if(n>3)return(ff(n-1)+ff(n-2));elsereturn(3);}voidmain(){printf("%d",ff(4));} A: 6 B: 5 C: 7 D: 8
以下程序的执行结果是()。#includelongff(intn){if(n>3)return(ff(n-1)+ff(n-2));elsereturn(3);}voidmain(){printf("%d",ff(4));} A: 6 B: 5 C: 7 D: 8
f(x)在[0,1]上有连续的二阶导数,f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]
f(x)在[0,1]上有连续的二阶导数,f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]
二次曲线[img=247x26]180319fcea47244.png[/img]的对称中心是( ) A: (0, 3) B: (3, 0) C: (0, 6) D: (6, 0) E: (3, 3)
二次曲线[img=247x26]180319fcea47244.png[/img]的对称中心是( ) A: (0, 3) B: (3, 0) C: (0, 6) D: (6, 0) E: (3, 3)
设f(x)=x(x-1)(x-2)(x-3),则f’(0)=() A: -6 B: -2 C: 3 D: -3
设f(x)=x(x-1)(x-2)(x-3),则f’(0)=() A: -6 B: -2 C: 3 D: -3
以F为下中音的和声大调,其音阶用音名来表述,正确的是( ) A: bA—bB—C—bD—bE—F—G—bA B: A—B—#C—D—E—F—#G—A C: F—G—A—bB—C—bD—E—F D: bD—bE—F—G—bA—bbB—C—bD
以F为下中音的和声大调,其音阶用音名来表述,正确的是( ) A: bA—bB—C—bD—bE—F—G—bA B: A—B—#C—D—E—F—#G—A C: F—G—A—bB—C—bD—E—F D: bD—bE—F—G—bA—bbB—C—bD
下列正弦量的相量表达式分别为:i1=3sinωt ,i2 =4sin(ωt-150°),i3=- 5sin(ωt- 60°)i4 =6cos(ωt+30°). A: 3∠0°;4∠-150°;5∠120°;6∠120° B: 3∠0°;4∠150°;5∠120°;6∠120° C: 3∠0°;4∠-150°;5∠-60°;6∠120° D: 3∠0°;4∠-150°;5∠120°;6∠30°
下列正弦量的相量表达式分别为:i1=3sinωt ,i2 =4sin(ωt-150°),i3=- 5sin(ωt- 60°)i4 =6cos(ωt+30°). A: 3∠0°;4∠-150°;5∠120°;6∠120° B: 3∠0°;4∠150°;5∠120°;6∠120° C: 3∠0°;4∠-150°;5∠-60°;6∠120° D: 3∠0°;4∠-150°;5∠120°;6∠30°
料仓中粉体结拱的临界条件是( )。 A: FF>ff B: FF=ff C: FF<ff D: FF=0
料仓中粉体结拱的临界条件是( )。 A: FF>ff B: FF=ff C: FF<ff D: FF=0
设f(x)=x2+bx+x满足关系式f(1+x)=f(1-x),则下述结论中,正确的是( ). A: f(0)>f(1)>f(3) B: f(1)>f(0)>f(3) C: f(3)>f(1)>f(0) D: f(3)>f(0)>f(1) E: f(1)>f(3)>f(0)
设f(x)=x2+bx+x满足关系式f(1+x)=f(1-x),则下述结论中,正确的是( ). A: f(0)>f(1)>f(3) B: f(1)>f(0)>f(3) C: f(3)>f(1)>f(0) D: f(3)>f(0)>f(1) E: f(1)>f(3)>f(0)
以下代码的输出结果是_________? int number = 6; while (number >; 0) { number -= 3; System.out.print(number + " "); } A: 60 B: 63 C: 30 D: 3 0 -3
以下代码的输出结果是_________? int number = 6; while (number >; 0) { number -= 3; System.out.print(number + " "); } A: 60 B: 63 C: 30 D: 3 0 -3