教材P89习题4 一、选择题 5.
A: s=a+b;
B: s=a+c;
C: s=s+c;
D: s=b+c;
A: s=a+b;
B: s=a+c;
C: s=s+c;
D: s=b+c;
举一反三
- 如果c是大于1的正整数,与以下程序段功能相等的赋值语句是( )。 A: s=b+c; B: s=s+c; C: s=a+b; D: s=a+c;
- Assume s, a, b, c are declared as integers, and a, c have been assigned values ( c>0 ),s=a;for(b=1; b<=c; b++)s=s+1;Which one of the following is equal to the above code? A: s=a+b; B: s=a+c; C: s=s+c; D: s=b+c;
- 39号元素钇的核外电子排布式是下列排布中的( ) A: 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 10 4 s 2 4 p 6 4 d 1 5 s 2 B: 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 10 4 s 2 4 p 6 5 s 2 5 p 1 C: 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 10 4 s 2 4 p 6 4 d 2 5 s 1 D: 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 10 4 s 2 4 p 6 5 s 2 5 p 1
- 逻辑电路图如下,其逻辑表达式为_______。[img=1868x1063]18034ae85e6886b.png[/img] A: S=ABC B: S=AB+(A+B)C C: S=A+B+C D: F=(A+B)(A+C)
- (S/A,10%,4)+(S/P,10%,4)=(S/A,10%,5)()。