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【单选题】
一种生物通过代谢产物抑制或影响另一种生物的生长发育或生存的现象称为( )。A.
交互保护作用
B.
重寄生作用
C.
竞争作用
D.
抗菌作用
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举一反三
【单选题】听力原文：W: Michael, have you seen the new Hollywood movie, Hannah Montana, The Movie? It is great. I love the story, especially the music that's my favorite part. M: Well, it is really not my cup of tea....
A.
The man likes the music of the movie.
B.
The man doesn't take to the movie.
C.
Both of the two speakers are fond of the movie.
D.
The woman likes the plot best.
【简答题】一个完整的项目代号由高层代号、( )、( )、( )四个代号段组成。它们的前缀符号分别是=、( )、( )、( )
【单选题】听力原文：W: Michael, have you seen the new Hollywood movie, Hannah Montana, The Movie? It is great. I love the story, especially the music that's my favorite part. M: Well, it is really not my cup of tea....
A.
The woman likes the plot best.
B.
The man doesn't take to the movie.
C.
Both speakers are fond of the movie.
D.
The man likes the music of the movie.
【单选题】在PowerPoint 2003启动幻灯片放映的操作中，错误的是()。
A.
单击演示文稿窗口左下角的quot幻灯片放映quot视图按钮
B.
选择quot幻灯片放映quot菜单中的quot观看放映quot命令
C.
选择quot幻灯片放映quot菜单中的quot幻灯片放映quot命令
D.
按F5键
【简答题】Ever since the first nuclear power stations were built, doubts have ________ about their safety. A) preserved B) survived C) suspended D) lingered
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