防止疲劳磨损主要是提高材料的（）。A.硬度 B.密度 C.强度 D.光洁度

改写句子， 按括号内的要求改写下列句子， 每个空格填一个单词。

1. They had lunch at school yesterday. (改写否定句 ) 　

　They _________ _________ lunch at school yesterday.

2. Tom visits the Science Museum every year. (就画线部分提问) 　　

    _________ _________ Tom _________ every year?

3. The building near the Tea House is the People's Hospital. (就画线部分提问) 　　

    _________ _________ is the People's Hospital?

4. "Are you going to watch the football match next Sunday?" Father asked me. (改为复合句) 　　

    Father asked me _________  _________ _________ going to watch the football match the next Sunday.

5. They van hardly decide what they will do next. (改写句子，句意不变) 　　

   _________ _________ for them to decide what _________ _________ nest.

6. The light in the room was so weak that the doctor wasn't able to operate. (改写句子，句意不变) 　　

    The doctor _________ do the _________ _________ such bad light inside the room.

7. Thy don't often hear the twins sing the song in the school . (改写句子，句意不变) 　　

    _________ of the twins _________ often heard _________ sing the song in the school.

读下图我国东南部地区某月等温线分布图，回答1~2题。

1、下列叙述正确的是[ ]

A、图为1月等温线

B、此季节气候寒冷干燥

C、图为7月等温线

D、此季节各地主要吹西北季风

2、下图中能正确表示该地区气候类型的是

A、A

B、B

C、C

D、D

（）收入免纳个人所得税。

A.劳务报酬所得

B.稿酬所得

C.特许权使用费所得

D.国债和国家发行的金融债券利息

“革命失败以后，革命的主观力量确实大为削弱了。剩下的一点小小的力量，若仅依据某些现象来看，自然要使同志们（作这样看法的同志们）发生悲观的念头。但若从实质上看，便大大不然。……这就是说，现在虽只有一点小小的力量，但是它的发展会是很快的。它在中国的环境里不仅是具备了发展的可能性，简直是具备了发展的必然性……”上述毛 * * 关于中国革命的论述发表于（）

A.国民革命时期

B.井冈山时期

C.延安时期

D.过渡时期