题目内容

Questions 23 to 25 are based on the passages you have just heard.

A. Science fiction has little relationships with current science or technology.
B. Science fiction is found in books, television, films, and games, but not in theatre.
C. Science fiction is written in an interesting and reasonable way.
D. Science fiction usually involves elements contrary to laws of nature.

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Questions 23 to 25 are based on the passages you have just heard.D . A setting involving a slower-than-light travel.

A setting in the future.
B. A setting in a historical past.
C. A setting concerning a new political system.
D. A setting involving a slower-than-light travel.

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7.在半殖民地半封建的中国，外国资本--帝国主义和本国封建主义的联合压迫，严重阻碍了中国的社会发展和进步，成为人民痛苦和民族灾难的根源，面对苦难，中国人民进行了一场场反帝反封建的革命斗争，这些革命斗争在五四运动前，属于旧的资产阶级民主主义革命范畴。（）

A. 对
B. 错

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本实验中谈到，旋光性是（）具有的特性

A. 对称碳原子
B. 不对称碳原子
C. 氨基基团
D. 氢原子

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偏振光是普通光通过（）后形成的。

A. 三棱镜
B. 红色滤光镜
C. 尼科尔棱镜
D. 光学显微镜

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