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【单选题】
下列过程不属于氮的固定的是 [ ]A.
N 2 →NO
B.
NH 3 →NH 4 NO 3
C.
N 2 →NH 3
D.
N 2 NO 3 -
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反馈参考答案：
举一反三
【单选题】Directions: Now you will hear a news report 1 . At the end of the report, you will hear some questions. After you hear a question, choose the best answer from the four choices.
A.
They know different kinds of languages.
B.
They like to whistle to each other for hours.
C.
They use whistling to communicate with others.
D.
They learn a whistling language from their cattle and sheep.
【简答题】下列哪一项属于配送中心的职能之A. 96 800x600 Normal 0 10 磅 0 2 false false false EN-US ZH-CN X-NONE ...
【单选题】Directions: Now you will hear a news report 1 . At the end of the report, you will hear some questions. After you hear a question, choose the best answer from the four choices.
A.
Preserving the island and mountains.
B.
Teaching the whistling language in schools.
C.
Asking people to move to the mainland of Spain.
D.
Encouraging people to use modern ways of communication.
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