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【单选题】
下列配合物中,属于螯合物的是A.
Li[AlH 4 ]
B.
K 2 [PtCl 6 ]
C.
(NH 4 )[Cr(NH 3 ) 2 (SCN) 4 ]
D.
[Ni(en) 2 ]Cl 2
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【简答题】They put off ________(have) the meeting. 2 . You should ask him not________( go) out at night. 3 . Do you have any ________(difficult) with your homework? 4 . Thank you for ________( repair ) my car ...
【简答题】sending a card to someone who is in hospital feeling happy because your friend has won a scholar to a prestigious university trying to comfort someone who has had bad news reacting physically when you...
【多选题】Now decide whether the feelings or actions described below are a result of empathy.
A.
sending a card to someone who is in hospital
B.
feeling happy because your friend has won a scholarship to a prestigious university
C.
trying to comfort someone who has had bad news.
D.
reacting physically when you see that someone is in pain
E.
collecting money to help the victims of a natural disaster
F.
crying at the end of a film
【简答题】车细长轴时,三爪跟刀架比两爪跟刀架的使用效果好。____
【简答题】Language is colourful. There are many with heart. One of them is to “lose your heart” to someone. When that , you have fallen in love. if the person who “won your heart” does not love you, you are to ...
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