[单项选择]When the integer n is divided by 6, the remainder is 3. Which of the following is NOT a multiple of 6 ？（）
A. n-3
B. T+3
C. 2n
D. 3n
E. 4n

[单项选择]When the integer k is divided by 12, the remainder is 3. Which of the following, when divided by 12, will have a remainder of 6 ？（）
Ⅰ 2k
Ⅱ 6k
Ⅲ 4k+6

A. Ⅰ only
B. Ⅱ only
C. Ⅲ only
D. Ⅰ and Ⅱ only
E. Ⅰ，Ⅱ，and Ⅲ

[单项选择]When 10 is divided by the positive integer n, the remainder is n-4. Which of the following could be the value of n ？（）
A. 3
B. 4
C. 7
D. 8
E. 12

[单项选择]

What is the remainder when the positive integer x is divided by 2 ？（）
(1)x is an odd integer.
(2)x is a multiple of 3.

A. 条件（1）充分，但条件（2）不充分.
B. 条件（2）充分，但条件（1）不充分.
C. 条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.
D. 条件（1）充分，条件（2）也充分.
E. 条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.

[单项选择]If n is a positive integer, then n(n+1)(n+2) is （）.
A. even only when n is even
B. even only when n is odd
C. odd whenever n is odd
D. divisible by 3 only when n is odd
E. divisible by 4 whenever n is even

[单项选择]

程序
PARAMETER (N=3)
INTEGER A(N，N)
READ *, A
DO 10 J=1，N
LS=0
DO 20 I=1，N
20 LS=LS+A(I，J)
LS=LS/N
DO 30 I=1，N
30 A(I，J)=A(I，J) -LS
10 CONTINUE
PRINT *, A
END
若输入2，4，6，8，10，12，14，16，18
程序执行后，A(3，2)为（）。

A. -2
B. 0
C. 2
D. 12

[单项选择]

For any positive integer n, n＞1, the "length" of n is the number of positive primes (not necessarily distinct) whose product is n. For example, the length of 50 is 3 since 50=(2)(5)(5)
Which of the following integers has length 3 ？（）

A. 3
B. 15
C. 60
D. 64
E. 105

[单项选择]If n is a positive integer and n2 is divisible by 72, then the largest positive integer that must divide n is ？（）
A. 6
B. 12
C. 24
D. 36
E. 48

[单项选择]执行下列程序段后，变量s的值是（）。
Dim S As Integer，n As Integer
S=0:n=1
Do While n＜100
S=S+N
n=n+1
Loop
A. 5050
B. 4950
C. 3000
D. 4000

[简答题]When the public demands "law and order" and when newspapers editorials talk about the "rising tide of crime," they have in mind mostly street crime committed by the poor. Even the massive report of the President’s Crime Commission, the Challenge of Crime in a Free Society, devoted only two pages to the entire subject of white-collar offenders and business crimes. The deep concern with street crimes is understandable. Unlike a swindler, who merely takes the victim’s money, an armed mugger threatens physical injury and even death. (1) Yet the fact remains that a great deal of crime in American society—perhaps most crime, and certainly the most costly crime—is committed by respectable middle-class and upper-class citizens. The term "white-collar crime" was first used by Edwin Sutherland: in an address to the American Sociological Association in 1939.(2) "White-collar crime," he declared, "may be defined approximately as a crime committed by a person of respectability and high status in th

[单项选择]阅读下列程序：
Function func(n As Integer)As Integer
Sum = 0
For i = 1 To n
Sum = Sum + (i + 1)* i
Next i
func = Sum
End Function.
Private Sub Command1_Click （　）
Dim a As Integer
a= 5
s = func (
A. 60
B. 70
C. 15

[单项选择]Is the integer n a multiple of 140 ？（）
(1) n is a multiple of 10.
(2) n is a multiple of 14.

A. 条件（1）充分，但条件（2）不充分.
B. 条件（2）充分，但条件（1）不充分.
C. 条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.
D. 条件（1）充分，条件（2）也充分.
E. 条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.

[单项选择]When ______ from milk, the remainder is called skim milk.
A. all the butterfat is removed
B. removing all the butterfat that
C. is all the butterfat removed
D. the removal of all the butterfat

[单项选择]If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n ？（）
(1)n is the cube of an integer.
(2)n is even.

A. 条件（1）充分，但条件（2）不充分.
B. 条件（2）充分，但条件（1）不充分.
C. 条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.
D. 条件（1）充分，条件（2）也充分.
E. 条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.

[单项选择]If an integer n is divisible by both 6 and 8, then it must also be divisible by which of the following ？（）
A. 10
B. 12
C. 14
D. 16
E. 18

[单项选择]The integer n is a multiple of both 5 and 3. Which of the following is (are) true
I. n is odd.
II. n=30.
III. n is a multiple of 15.
A. III only
B. I and II only
C. I and III only
D. II and III only
E. I, II, and III

[单项选择]If n is a positive integer and k+2=3ⁿ, which of the following could NOT be a value of K ？（）
A. 1
B. 4
C. 7
D. 25
E. 79

[单项选择]If n is a positive integer and k=5.1×10ⁿ, what is the value of k ？（）
(1)6,000＜k＜500,000
(2)k²=2.601×10⁹

A. 条件（1）充分，但条件（2）不充分.
B. 条件（2）充分，但条件（1）不充分.
C. 条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.
D. 条件（1）充分，条件（2）也充分.
E. 条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.