搜题请搜索小程序“爱下问搜题”
问题 写句子

我会写表达不同语气的句子。  

1．                                                                                               ？

2．                                                                                               ！

3．                                                                                               。

答案

1．他夺冠了？ 

2．他夺冠啦！ 

3．他夺冠了。

(答案不唯一)

选择题

下列反应的离子方程式书写正确的是[ ]

A．AgNO3溶液中加入过量的氨水：Ag+＋NH3·H2O＝AgOH↓＋NH4+

B．在偏铝酸钠溶液中通入过量的二氧化碳气体 2AlO2-+ CO2+3H2O=2Al(OH)3↓+ CO32-

C．碳酸氢铵溶液与足量氢氧化钠溶液反应：NH4+＋OH-＝NH3·H2O

D．1 mol/L的NaAlO2溶液和2.5 mol/L的HCl等体积均匀混合：2AlO2- + 5H+ ＝ Al(OH)3↓ +Al3+ +H2O

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单项选择题

Speaker A: I know you are busy but there’s something rather urgent I want to talk to you about. Will it be all right if I come round in the afternoon
Speaker B: ().

A. What is it that is so urgent Can’t you deal with it on your own

B. Sure, you are welcome any time.

C. Well, I have an important meeting to attend. Will tomorrow suit you

D. Yes, I’m extremely busy at the moment. A group of reporters are waiting to interview me.
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