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【单选题】
在青蒿素的结构中，具有抗疟作用的活性基团是A.
羰基
B.
醚键
C.
过氧基
D.
内脂环
E.
双键
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反馈参考答案：
举一反三
【单选题】关于《诗经》的三种表现手法,下列哪项说法有误?
A.
“赋”是最基础、最常见的表现手法。是直接的描写、叙事、抒情。
B.
“比”的范围比我们现在说的“比喻”更广。写甲物，意在乙物，甲乙之间有某种相似性。
C.
“兴”通常是景物描写，常用在一章的结尾。
D.
“关关雎鸠，在河之洲。”这里用到了“兴”。
【单选题】I wish I the White House when I was in the States.
A.
have visited
B.
had visited
C.
visited
D.
were to visit
【简答题】. 鳗鲡又称 _______ 、 _______ 、 _______ 等。
【单选题】I wish to ____ my special thanks to Mr. White.
A.
stretch
B.
expand
C.
extend
D.
strain
【单选题】Which country is the world' s third largest region to be affected by acid rain?
A.
Europe.
B.
North America.
C.
China.
D.
Japan.
【单选题】Which of the following statements about the Third Age in paragraph 2 is true?
A.
The elderly can't work in this stage.
B.
The elderly' s lives are full of pleasure during the whole stage.
C.
For the elderly, depending on society and death are inevitable finally.
D.
The elderly are afraid of death very much.
【简答题】计算机内,所有数据的存储、处理、传递均采用_____形式。
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