用什么分析方法分析炼厂气的组成?

题型:问答题 简答题

问题:

用什么分析方法分析炼厂气的组成?

考点:环保及给排水考试环保及给排水考试题库
题型:问答题 简答题

The plane for Yunnan will______ in two hours. Let’s go to the airport as soon as possible.

A.turnoff

B.go off

C.take off

D.turn on

题型:问答题 简答题

拉丁美洲最早的居民是_______,他们创造了辉煌的文明。

题型:问答题 简答题

根据句意及首字母提示补全单词。

1. The little shy girl got n_____ when she saw the head teacher coming towards her.

2.Her friends all believe what she said,because she is always t_____ to words.

3. Jack wanted to post this letter,so he went to the post office to buy some stamps and an e_____.

4. You are so l_____ to have such good and patient teachers.

5. The weather was bad and the food was so terrible. My holiday was very d_____.

题型:问答题 简答题

把多项式2x2-5+xy-3x3y3按字母x的升幂排列是:______.

题型:问答题 简答题

导游人员黄某违反有关法规,向旅游者一行15人索要小费2000元人民币,根据《旅行社质量保证金赔偿试行标准》,应赔偿旅游者()人民币。

A.2000元

B.3000元

C.4000元

D.5000元

更多题库