• 2021-04-14 问题

    能正确表示“当x的取值在[-58,-40]和[40,58]范围内为真,否则为假”的表达式是: (x>= -58) && (x<= -40) && (x>=40) && (x<=58)|(x>= -58) && (x<= -40) || (x>=40) && (x<=58)|(x>= -58) | |(x<= -40) && (x>=40) || (x<=58)|(x>= -58) || (x<= -40) || (x>=40) || (x<=58)

    能正确表示“当x的取值在[-58,-40]和[40,58]范围内为真,否则为假”的表达式是: (x>= -58) && (x<= -40) && (x>=40) && (x<=58)|(x>= -58) && (x<= -40) || (x>=40) && (x<=58)|(x>= -58) | |(x<= -40) && (x>=40) || (x<=58)|(x>= -58) || (x<= -40) || (x>=40) || (x<=58)

  • 2022-07-26 问题

    能正确表示“当x的取值在&#91;-58,-40&#93;和&#91;40,58&#93;范围内为真,否则为假”的表达式是()。 A: (x>=-58)&&(x<=-40)&&(x>=40)&&(x<=58) B: (x>=-58)∥(x<=-40)∥(x>=40)∥(x<=58) C: (x>=-58)&&(x<=-40)∥(x>=40)&&(x<=58)

    能正确表示“当x的取值在&#91;-58,-40&#93;和&#91;40,58&#93;范围内为真,否则为假”的表达式是()。 A: (x>=-58)&&(x<=-40)&&(x>=40)&&(x<=58) B: (x>=-58)∥(x<=-40)∥(x>=40)∥(x<=58) C: (x>=-58)&&(x<=-40)∥(x>=40)&&(x<=58)

  • 2022-10-31 问题

    假定16<X≤40,那么用边界值分析法,X在测试中应该取的边界值是: A: X=16,X=17,X=40,X=41 B: X=15,X=16,X=40,X=41 C: X=16,X=17,X=39,X=40 D: X=15,X=16,X=39,X=40

    假定16<X≤40,那么用边界值分析法,X在测试中应该取的边界值是: A: X=16,X=17,X=40,X=41 B: X=15,X=16,X=40,X=41 C: X=16,X=17,X=39,X=40 D: X=15,X=16,X=39,X=40

  • 2022-06-14 问题

    设有变量定义:x=(10,20,30)和y=&#91;10,20,30&#93;,以下正确的赋值语句是_______。 A: x(2)=40 B: x[2]=40 C: y(2)=40 D: y[2]=40

    设有变量定义:x=(10,20,30)和y=&#91;10,20,30&#93;,以下正确的赋值语句是_______。 A: x(2)=40 B: x[2]=40 C: y(2)=40 D: y[2]=40

  • 2021-04-14 问题

    【单选题】#include <stdio.h> int x1 = 30, x2 = 40; void sub(int x, int y) { x1 = x; x = y; y = x1; } int main() { int x3 = 10, x4 = 20; sub(x3, x4); sub(x2, x1); printf(" %d, %d, %d, %d ", x3, x4, x1, x2); return 0; } A. 10, 20, 40, 40 B. 10,40, 40, 40 C. 20, 20, 40, 40 D. 10, 10, 40, 40

    【单选题】#include <stdio.h> int x1 = 30, x2 = 40; void sub(int x, int y) { x1 = x; x = y; y = x1; } int main() { int x3 = 10, x4 = 20; sub(x3, x4); sub(x2, x1); printf(" %d, %d, %d, %d ", x3, x4, x1, x2); return 0; } A. 10, 20, 40, 40 B. 10,40, 40, 40 C. 20, 20, 40, 40 D. 10, 10, 40, 40

  • 2022-06-09 问题

    “int x=40;”,声明了一个字符型类的x变量,其默认值为40。

    “int x=40;”,声明了一个字符型类的x变量,其默认值为40。

  • 2022-06-27 问题

    普通X线摄影用的管电压范围是 A: 25~40kVp B: 40~60kVp C: 40~100kVp D: 40~120kVp E: 40~150kVp

    普通X线摄影用的管电压范围是 A: 25~40kVp B: 40~60kVp C: 40~100kVp D: 40~120kVp E: 40~150kVp

  • 2022-06-05 问题

    四格表X A: n≥40 B: T≥5 C: n≥40且T≥5 D: n≥40但1≤T<5 E: n<40或T<1

    四格表X A: n≥40 B: T≥5 C: n≥40且T≥5 D: n≥40但1≤T<5 E: n<40或T<1

  • 2021-04-14 问题

    You are offered an investment opportunity. Its outcomes and probabilities are presented in the following table. X P(X) –$1000 .40 $0 .20 +$1000 .40 The mean of this distribution is _____________.

    You are offered an investment opportunity. Its outcomes and probabilities are presented in the following table. X P(X) –$1000 .40 $0 .20 +$1000 .40 The mean of this distribution is _____________.

  • 2022-06-27 问题

    普通X线摄影用的管电压范围是 A: 25~40kV B: 35~40kV C: 40~60kV D: 40~100kV E: 40~150kV

    普通X线摄影用的管电压范围是 A: 25~40kV B: 35~40kV C: 40~60kV D: 40~100kV E: 40~150kV

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