国际高中备考之数学储备（理科干货第34期）

本周的数理化小课堂给大家带来的是两道有关于number的题型。大家一起来试一试吧。

1.Which of the following equals the reciprocal of a-1/b?, where a-1/b??does not equal to zero.A.a/(ab-1) ? B.b/(ab-1)C.b - 1/a ? ?D.b/(a-1)

关键词汇： Reciprocal: 倒数

2.?The?integer n?is a multiple of both 5 and 3. Which of the following statement is true?I.?n?is odd.II.?n = 30.III.?n is a multiple of 15

A.?I only ? ? ? B. II only

C. III only ? ? D. none

关键词汇：Integer: 整数；Multiple：倍数； Odd：奇数