题目内容

Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now listen to the passage. How many high school students are presenting science projects in Portland this week

A. One hundred.
B. Several hundred.
C. One thousand.
D. Several thousan

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( )利用前药修饰原理,减少副作用。

A. 匹氨西林
B. 美法仑
C. 克林霉素制备成棕榈酸酯
D. 丙酸睾酮
E. 贝诺酯

Questions 14 to 17 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions. Now listen to the passage. Who looks after the paper, especially the front page, in the afternoon and evening, preparing for the next morning

A. The Assistant Editor.
B. The head of the department.
C. The Night Editor.
D. The Deputy Editor.

Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now listen to the conversation. Who gave New York its nickname

Artists.
B. Musicians.
C. Grocers.
D. Tour guides.

按照网络对介质频带的使用特点,局域网可分为( )。

A. 以太网、令牌网
B. 环型网、星型网、总线型网
C. 同种机网络、异种机网络
D. 基带局域网、宽带局域网

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