1.列表a=[True,[1,2],2,3,2]，则a.count(2)=______；执行指令：a.reverse()后，a=___________。

count = 0while count < 5： print（ count） count = count + 2print( “Over!")

以下哪个方法不属于标准查询运算符？（） A: A.Count() B: B.Add() C: C.Where() D: D.Select()

阅读以下程序public class Count{static int count;int number;public Count(){count = count + 1;number = count;}}class Test{public static void Main(){Count a = new Count();Count b = new Count();Count c = new Count();}}程序运行后，对象a的count值是（） A: 0 B: 1 C: 2 D: 3

count = 0 while count < 5: print (count, " 小于 5") count = count + 1 else: print (count, " 大于或等于 5")

下列if语句中，程序风格最规范的是（）。 A: if (count >;= 100) count = 0; B: if (count >;= 100) {count = 0;} C: if (count >;= 100)count = 0; D: if (count >;= 100){count = 0;}

给定一个Java程序的代码如下所示，则编译运行后，输出结果是 ( )。 public class Test { int count = 9; public void count() { System.out.println("count=" + count++); } A: blic static void main(String args[]) new Test().count(); new Test().count();}} B: count=9 count=9 C: count=10 count=9 D: count=10 count=10 E: count=9 count=10

使用while 语句实现打印出1至10.count = 1while ( ) print (count) count = count + 1 A: count B: True C: count D: count

(Short-answer Question)What transitional states are possible when a 4-bit asynchronous binary counter changes from (a) count 2 to count 3 (b) count 3 to count 4 (c) count 1010 to count 1110 (d) count 15 to count 0

下列哪条语句是正确的?_______________ A: int count = 5; int* x = &count; B: int count = 5; int x = &count; C: int count = 5; int& x = &count; D: int count = 5; int** x = &count;