正确答案: C

中生代

题目：在地球的生命史上，恐龙非常繁盛的时期是( )

解析：C

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举一反三的答案和解析：

[单选题]What is the passage mainly about?

Charity work of some Chinese artists.

[单选题]Which of the following information is NoTmedtioned？

Who added the stories.

[单选题]34_____.

many

[单选题]—Haveyou____joinedinadragonboatrace?—Yes，Ihave．

ever

[单选题]7．—Are broccoli and carrots __________．—Yes，they are．

vegetables

解析：7.D【解析】vegetable是可数名词，复数形式是 vegetables．

[单选题]7． —When will Guo Jingming’s new book ________ ?

—Sorry，l don-t know．I’m looking forward to his new book，to a．

come out

解析：7．B【解析】come out有“出版，发行”的意思。

[单选题]陈胜吴广起义后，建立张楚政权的地点是（ ）

陈

[单选题]29． When people travel on business(出差) ,they usually take _________ ．

a train or a plane

解析：29．A[解析】从文章最后一句可知。