题目内容

发酵培养基的组成和配比由于菌种不同、设备和工艺不同等有所差异,一般包括碳源、氮源、无机盐类、生长因子等几类。

A. 对
B. 错

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采用正交法进行一个三因素三水平的实验需要进行9次实验。

A. 对
B. 错

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Directions: Now, you will hear three news reports. At the end of each news report, youwill hear two or three questions. Both the news report and the questions will be spoken only once. After you hear a question, you are supposed to choose the best answer from the four choices marked A), B),C) and D).Questions 1 and 2 will be based on News ltem 1.[音频]1

A. On a northern island of Japan.
B. On a southern island of Japan.
C. On Japan's southernmost main island of Kyushu.
D. Off the east coast of Japan.

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2

A. It would delay the plant's restarting for a few months.
B. It would lead to the cancellation of the plant's restarting plan.
C. It was not immediately clear if it would affect the plant's restarting plan.
D. It would incur more safety hurdles for the plant.

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Questions 3 and 4 will be based on News ltem 2.[音频]3

A. Eleven.
B. Thirteen.
C. Twenty-six.
D. Fifty.

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发酵培养基的组成和配比由于菌种不同、设备和工艺不同等有所差异,一般包括碳源、氮源、无机盐类、生长因子等几类。

A. 对 B. 错

采用正交法进行一个三因素三水平的实验需要进行9次实验。

2

Questions 3 and 4 will be based on News ltem 2.[音频]3

A. 对
B. 错