下列算式中,第一个数能整除第二个数的是( )
A. 2.5和5 B. 25和5 C. 25和75 D. 0.5和0.5
In the following pairs of numbers, in which pair does the first number divide the second number exactly?
( )
A. 2.5 and 5 B. 25 and 5 C. 25 and 75 D. 0.5 and 0.5
如果 10 能整除 a,那么 a可取的值有( )
(A) 2 个
(B)3个
(C) 4 个
(D)无数个
If 10 divides a, then a can take ( )
(A) 2 values
(B) 3 values
(C) 4 values
(D) an infinite number of values
既能被 5 整除,又能整除 30 的正整数分别是哪些?其中最大的是多少?
What are the positive integers that are divisible by both 5 and 30? What is the largest of these numbers?