2026年-复习模拟卷-01-c基础-2

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Which of the following is a valid variable name in C?

What is the output of printf("%d", 7 / 2);?

Which statement reads an integer into variable age correctly?

What is the value of x after executing int x = 10; x = x + 5;?

The expression (3 > 2) && (5 < 4) evaluates to:

Which operator has the highest precedence?

After int m = 10, n; n = m++; what are the values of m and n?

Which format specifier is used to print a char variable as a character?

What does the function getchar() return when the user presses the Enter key?

Which of the following is a compound assignment operator?

The C language was originally designed by Dennis Ritchie and his team members.

In C, variable names can be set as Ivar, &23 etc.

The printf function requires the address of variables (using &) to output their values such as int sum; sum=2+4; printf("Sum is %d\n",&sum);.

The scanf("%d", &a) function reads an integer from the keyboard and stores it in variable a.

In C, for the expression float average= 5 / 2; average is 2.5 .

The remainder operator % can be used with floating-point operands such as float s =5.6 % 2;.

The statement int n=1; int m=++n; increments n by 1 to n=2, so m=2.

The compound assignment a += 3 is equivalent to a = a + 3.

The comma expression int z=(a=2, b=3, a+b); makes z=5.

The getchar() function reads a single character from the keyboard and returns it as an integer (ASCII value).

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