选择题：You&39;d better take these documents with you __ you need them for the meeting

题目内容：

You&39;d better take these documents with you __ you need them for the meeting

A.unless

B.in case

C.until

D.so that

参考答案：【答案仅供学习，请勿对照自行用药等】

He pointed at the new car and asked, "___ is it? Have you ever seen it before?"

He pointed at the new car and asked, "___ is it? Have you ever seen it before?"A.WhyB.WhereC.WhoD.Who

分类：习题答案题型：选择题

We thought they had come to repair the phone, but ____, they were robbers.A.in realityB.in additionC.

分类：习题答案题型：选择题

分类：习题答案题型：选择题

氧气对水生动物来说，属于( )A.综合因子B.一般生态因子C.替代因子D.限制因子

分类：习题答案题型：选择题

目前全球气候异常主要是由于“温室效应”。( )此题为判断题(对，错)。

分类：习题答案题型：选择题