如果+10%表示“增加10%”，那么“减少8%”可以记作（ ）。

【名词&注释】

混合物(mixture)、百分比(percentage)、化工产品(chemical products)、汉高祖、文景之治、物主代词(possessive pronouns)、汉景帝、可利用(can use)、汉文帝(emperor wen)

[单选题]如果+10%表示“增加10%”，那么“减少8%”可以记作（ ）。

A. -18%
B. -8%
C. +2%
D. +8%

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学习资料：

[单选题]12．

A. can ．
B. should
C. must
D. need

[单选题]CJoan is an American girl．(21)family is in New York．(22) is thirteen．She (23) salad a lot．

A. She likes Chinese food，too． (25) lunch she likes eating chicken． She reads Chinese every morning． She likes(26) Chinese (27)class． She usually (28) Chinese after class， too．
B. It’s relaxing at home． She likes(30) tennis，too．
D. Her
E. Hers
F. She
G. He

[单选题]BScientists are trying to make the deserts into good land again． They want to，bring water to the deserts． But more and more places of the earth is becoming deserts all the time， Scientists may not be able to change the deserts． Scientists think that people make deserts． People are do-ing bad things to the earth．

A. But they still don-t become deserts．This is because some green plants are growing there． Small green plants and grass are very helpful to dry places． Plants don't let the wind blow the earth away． When 8 little bit of rain falls，the plants hold the water． Without plants，the land can become a desert much more easily．
B. Why can the land become a desert?
C. Because some places don't get very much rain．
D. Because plants don-t let the hot sun make the earth even drier．
E. Because people don't keep the earth well．
F. Because scientists haven-t learnt enough about the deserts．

[单选题]文景之治是谁统治时期

A. 汉高祖
B. 汉文帝^{(emperor wen)}
C. 汉文帝^{(emperor wen)}、汉景帝
D. 汉景帝

[单选题]下列关于石油的叙述不正确的是（    ）

A. 石油是一种化工产品 石油是一种混合物 可利用^{(can use)}石油产品发电  将石油分馏可得到多种产品

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