题目内容

Travel was important in the past because it ______.

A. was a way of spreading ideas
B. broke down political barriers
C. led to economic progress
D. made new ideas less schooling

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某研究组获得了水稻的叶黄素缺失突变体，并将其叶片进行了红光照射光吸收测定和色素层析条带分析(从上至下)。与正常叶片相比，实验结果是( )

A. 光吸收差异显著，色素带缺第2条
B. 光吸收差异不显著，色素带缺第2条
C. 光吸收差异显著，色素带缺第3条
D. 光吸收差异不显著，色素带缺第3条

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孙某因交通肇事逃逸致人死亡，则对他的刑事追诉期限应当是__________。

A. 5年
B. 10年
C. 15年
D. 20年

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Why do some people become vegetarians

A. They feel that eating animals is unethical.
B. There are fewer livestock available due to the environmental pollution.
C. The consumption of meat will lead to financial problem.
D. Being a vegetarian is beneficial to the protection of water.

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At dusk, Mr. Hightower would sit in his old armchair in the backyard and wistfully lose in reminiscence of his youth romances.

A. hopefully
B. reflectively
C. sympathetically
D. irresistibly

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Travel was important in the past because it ______.

A. was a way of spreading ideas B. broke down political barriers C. led to economic progress D. made new ideas less schooling

某研究组获得了水稻的叶黄素缺失突变体，并将其叶片进行了红光照射光吸收测定和色素层析条带分析(从上至下)。与正常叶片相比，实验结果是( )

孙某因交通肇事逃逸致人死亡，则对他的刑事追诉期限应当是__________。

Why do some people become vegetarians

At dusk, Mr. Hightower would sit in his old armchair in the backyard and wistfully lose in reminiscence of his youth romances.

A. was a way of spreading ideas
B. broke down political barriers
C. led to economic progress
D. made new ideas less schooling