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【单选题】
在下列电子的径向分布函数图中，出现峰数最多的是A.
3s
B.
3d
C.
3p
D.
4s
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反馈参考答案：
举一反三
【简答题】Being introduced invites you into the conversation and makes you feel like part of the group, which is why an introduction shows your respect for your guest. Attending an without being in...
【单选题】When scheduling meetings in southern cities, you'll find the business settings are ______.
A.
quite formal
B.
very casual
C.
very serious
【简答题】数字信号的特点是在时间和幅度上都是不(__)。
【判断题】In business settings, If a male has higher authority than a female, the woman should be introduced to the man.
A.
正确
B.
错误
【简答题】模拟信号的特点是在幅度和时间上都是 变化的。数字信号的特点是幅度和时间上都是 变化的。
【单选题】Listen to the passage and select the correct answers. 1. What is the current trend of VoIP in business settings?
A.
It has not been widely adopted by companies.
B.
It is being used more and more widely. .
C.
It has been used too much.
D.
It has already been outdated
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