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Assignment 3 1_________ policemen, both 2_________ and the U. S., hardly recognize any 3_________ between their lives and what they 4_________ ---if they ever get home 5_________. Some 6_________ almost the same, of course, but the policemen 7_________ much of them. The first 8_________ is that a policeman's real life 9_________ the law. Most of what he 10_________ is the law. He has to know actually what 11_________ the law and what facts can be used to prove them12_________ . He has to know 13_________ law as a lawyer, and what's more, he has to put it into practice 14_________, in the dark and, running down 15_________ after someone he wants to talk to. Little of his time 16_________ talking with beautiful girls or in 17_________ cruel criminals. He will spend most of his 18_________ arranging millions of words on 19_________ about hundreds of sad, ordinary people 20_________—or not of stupid, unimportant crimes. assignment 3.mp3
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皮皮学刷刷变学霸
举一反三
【单选题】下列反应中,反应物中的各种元素都参加了氧化还原的是(  )
A.
2KNO 3 +S+3C═K 2 S+N 2 ↑+3CO 2 ↑
B.
2KMnO 4 ═K 2 MnO 4 +MnO 2 +O 2 ↑
C.
4HNO 3 ═2H 2 O+4NO 2 ↑+O 2 ↑
D.
HgS+O 2 ═Hg+SO 2
【单选题】已知反应(1)MnO(s)+1/2O 2 (g)=MnO 2 (s)的Δ r H θ m1 (2)MnO 2 (s)+Mn(s)=2MnO(s)的Δ r H θ m2 则Δ r H θ m (MnO 2 、S)=()
A.
Δ r H θ m1 -Δ r H θ m2
B.
2Δ r H θ m1 +Δ r H θ m2
C.
2Δ r H θ m1 —Δ r H θ m2
D.
Δ r H θ m1 + 2Δ r H θ m2
【判断题】与人告别时,先后退两步再转身离去,步幅要小,先转身后转头。
A.
正确
B.
错误
【判断题】()与人告别时,先后退两步再转身离去,步幅要小,先转身后转头。
A.
正确
B.
错误
【单选题】下面哪种不属于筵宴的环节?
A.
宴会设计环节
B.
菜点设计原则
C.
接待服务原则
D.
原料采购原则
【单选题】对于半反应 MnO 4 − + 8H + + 5e = Mn 2 + + 4H 2 O ,下列表述错误的
A.
电对表示方法
B.
电对符号为 MnO 4 − /Mn 2 +
C.
H + 浓度升高, MnO 4 − /Mn 2 + 电极电势变小
D.
MnO 4 − 是电对的氧化型
【判断题】与人告别时,应当先后退两三步,在转身离去
A.
正确
B.
错误
【判断题】与他人告别时,应后退两三步,再转身离去。
A.
正确
B.
错误
【单选题】下面哪种环节不属于筵宴的环节。
A.
宴会设计
B.
菜点设计
C.
接待服务
D.
原料采购
【单选题】与人告别时, _________,退步时步幅要小,________。
A.
应当先后退两步再转身离开;先转身后转头
B.
先转身离开;先转身后转头
C.
应当先后退两步再转身离开;同时转身转头
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