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【单选题】
要证明某溶液中不含Fe 3+ 而可能含Fe 2+ ，进行如下实验操作时，最佳顺序是 [ ] ①加足量氯水②加足量KMnO 4 溶液③加少量KSCN溶液A.
①②
B.
③②
C.
③①
D.
①②③
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举一反三
【单选题】According to Philip Balls research, which of the following is true?
A.
Human beings are born to be professional musicians.
B.
There exist no sharp differences among various types of music.
C.
People usually learn music by means of hearing around.
D.
Mankind posses a natural music instinct and can't wipe it off.
【简答题】Air France flight 358--4.mp4 4) Air France 358 Toronto Canada, it is summer evening and AFR 358 from Paris is ______ International airport. On board Airbus 340 are __________ But the flight ________, ...
【单选题】患者男性,25岁,高热3日未进食,自述口渴尿少。查体:口舌干燥,皮肤弹性差,眼窝凹陷,血清钠浓度为155mmol/L,尿比重1.029。该患者应首先输入的液体为( )
A.
3%氯化钠溶液
B.
5%碳酸氢钠溶液
C.
5%葡萄糖溶液
D.
5%葡萄糖氯化钠溶液
E.
平衡液
【简答题】完形填空。 Philip is from England. Now he is studying in Beijing. He gets up at half past six 1 has breakfast at seven o'clock. After that, he 2 goodbye to his parents, and 3 home for school. His school is...
【单选题】患者男性,25岁,高热3日未进食,自述口渴尿少。查体:口舌干燥,皮肤弹性差眼窝凹陷,血清钠浓度为155mmol/L,尿比重1.029.应首先输入的液体为()
A.
3%氯化钠溶液
B.
5%碳酸氢钠溶液
C.
5%葡萄糖溶液
D.
5%葡萄糖氯化钠溶液
E.
平衡液
【单选题】听力原文：Friend: Hello, Philip. Are you doing a photography course? Philip: Yes, there wasn't one at my college, Park College, so I go to City College in South Road. Friend: Are your classes in the evenin...
A.
5.15 p.m.
B.
6.00 p.m.
C.
6.45 p.m.
【简答题】下列的选项中,能够体现虚拟局域网的优点的是()A. 可以有效的防范广播风暴; B. 能够增强局域网的安全性; C. 能够简化项目管理或应用管理; D. 能够增加网络连接的灵活性;
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