09年12月，联合国气候大会在哥本哈根举行．会议的核心议题是“减_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

09年12月，联合国气候大会在哥本哈根举行．会议的核心议题是“减少温室气体的排放量，以控制全球气候变暖”．导致温室效应的主要气体是[ ]

A．二氧化碳

B．氧气

C．氮气

D．氢气

答案

答案：A

填空题

点B（-m，m-1）在x轴上，则m=______．

补全对话，情景问答

从下面方框中选择相对应的答语。

( )1. Have you ever been to the Summer Palace?
( )2. How much is this pair of trousers?
(     )3. How far is it from home?
(     )4. How long bave you been leaming Japanese?
(     )5. Where is Tom?
(     )6. What should I do if my watch is out of style?

A. Fifty-six yuan.
B. Since I was 8 years old.
C. No,I haven't.
D. Thirty minutes by bus.
E. He has gone to America.
F. Maybe you should buy a new watch.