1.单选题(1分)

If p and q are pointers that point to a same array, which is nonsense operation with them?

Aif(p>=q);

Bp=null;

Cp=q+1;

Dp=p+q;

正确答案：D

2.单选题(1分)

If there is a statement: int m=10; ,which of the following statement is correct?

Aint &x = m;

Bint &y = 10;

Cint &z;

Dfloat &t = &m;

正确答案：A

3.单选题(1分)

Which of the following string content is incorrect?

A'abc'

B"12’12"

C"0"

D" "

正确答案：A

4.单选题(1分)

Suppose there are two statements: string s1;char s2[20];, which of the following statement is incorrect?< ……此处隐藏10010个字…… ion of the program.

正确答案：正确

46.判断题(1分)

The functions with the same signatures but different return types can be overloaded.

正确答案：错误

47.判断题(1分)

The parameter of a copy constructor is usually an object or a reference of an object.

正确答案：正确

48.判断题(1分)

In public inheritance, both the public and private members of the base class are visible in the derived class.

正确答案：错误

49.判断题(1分)

When an operator is overloaded, the precedence and associative properties of the original operator do not change.

正确答案：正确

50.判断题(1分)

Suppose an array arr is defined, then using sizeof(arr) can get the numbers of the elements in arr.

正确答案：错误