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【多选题】
四个量子数是指 ( )A.
主量子数
B.
角量子数
C.
磁量子数
D.
原子序数
E.
自旋量子数
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反馈参考答案：
举一反三
【单选题】—What about going abroad for further study? —Great, but I never expect ______ a chance for me before.
A.
there to be
B.
there being
C.
there is
D.
there to have
【简答题】be projected to be derived from fill up clear up pose a risk to be upon hinge on factor in Before going further, let me an important point about the organization...
【单选题】Before going further, let me ____________ an important point about the organizations that are involved in this research program.
A.
hold up
B.
clear up
C.
take up
D.
break up
【单选题】Before going further, let me ________ an important point about the organizations that are involved in the research program.
A.
fill up
B.
flare up
C.
make up
D.
clear up
【单选题】What about going abroad for further study?Great, but I never expected_______ a chance for me before.
A.
there to be
B.
there being
C.
it to be
D.
it being
【简答题】You are going to listen to a meeting about saving energy in an office. Before you listen, read the text below and write the words in bold next to the definitions. measures to reduce energy cons...
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