单选题：请在第38处填上正确答案。

题目内容：

请在第__38__处填上正确答案。 A．average
B．reducing
C．change
D．characters
E．reproduction
F．manage
G．conscious
H．design
I．dropped
J．envy
K．guilty
L．indirect

参考答案：

答案解析：

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回答题Benefits of FriendshipA lot of research has been done looking into the benefi

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回答题Green TransportationGreen transportation choices provide you with the keys to

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请在第__45__处填上正确答案。

分类：英语(二) 题型：单选题

Which of the following statements is true according to the first paragraph? （　　）

分类：英语(二) 题型：单选题