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【单选题】
根据泡利原理,每个原子轨道最多可容纳的电子数为 ( )A.
1
B.
2
C.
3
D.
4
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反馈参考答案：
举一反三
【简答题】A．Because he likes do things by himself. B．Because he doesn't trust them. C．Because he has little time to contact with them. D．Because he will pay extra money to them.
【单选题】下列呼叫墨卡托区范围0150204540,表示:
A.
15°N 020°E～60°S 060°Ｅ
B.
15°N 020°E～30°S 060°E
C.
15°N 020°W～60°S 020°Ｅ
D.
15°N 020°W～30°S 020°
【简答题】A．Because he is sure that he can get up for the class. B．Because he has confidence in his economic knowledge. C．Because he dropped that class two weeks ago. D．Because he didn't sign up for that class ...
【简答题】A. Because he wanted to be a journalist. B. Because he liked the climate there. C. Because he wanted to get away from the army. D. Because he was sent there by his father.
【单选题】下列呼叫墨卡托区范围1200305010，表示——。
A.
20N030E - 50S010E
B.
20N030W - 30S020W
C.
20N050W - 10S040W
D.
12N030E - 50N0lOE
【单选题】下列呼叫墨卡托区范围1200305010,表示:
A.
２０°Ｎ３０°Ｅ～５０°Ｓ１０°Ｅ
B.
２０°Ｎ３０°Ｗ～３０°Ｓ２０°Ｗ
C.
２０°Ｎ５０°Ｗ～１０°Ｓ４０°Ｗ
D.
１２°Ｎ３０°Ｅ～５０°Ｎ１０°Ｅ
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