计算: (1)(2) 答案:【答案】(1);(2).【解析】试题分析:(1)先观察发现此题是由两部分构成,单项式乘多项式、完全平方公式;(2)先将括号内通分、分式分子分母因式分解后约分,注意将当作一个整体处理;试题解析:(1)原式=.(2)原式故答案为:(1);(2). Mr.
Barren doesn’t think that all bad language should be allowed. In his opinion,
there are ___________ that should be kept up.
A.
degrees
B.
levels
C.
limits
D. standards