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【单选题】
对于四个量子数，下列叙述中正确的是______。A.
磁量子数m=0的轨道都是球形的
B.
角量子数Z可以取从0到n的正整数
C.
决定多电子原子中电子的能量的是主量子数
D.
自旋量子数m S 与原子轨道无关
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反馈参考答案：
举一反三
【简答题】医养结合联合运营模式
【单选题】I was to have a trip abroad if ________.
A.
I had not been fired
B.
I was not fired
C.
my boss won't have fired me
D.
I were not fired
【单选题】听力原文：W: Tony, I just moved into my new apartment, and I need to have the phones hooked up. I have no idea what I am doing. I have to make all these decisions about local, local long-distance, and long...
A.
Lower prices.
B.
More choices.
C.
More competition.
D.
More companies.
【单选题】听力原文：W: Tony, I just moved into my new apartment, and I need to have the phones hooked up. I have no idea what I am doing. I have to make all these decisions about local, local long-distance, and long...
A.
Lower prices.
B.
More choices.
C.
More competition.
D.
More companies.
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