國際高中備考之數學儲備（理科干貨第34期）

本周的數理化小課堂給大家帶來的是兩道有關于number的題型。大家一起來試一試吧。

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)

關鍵詞匯： Reciprocal: 倒數

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

關鍵詞匯：Integer: 整數；Multiple：倍數； Odd：奇數