题目:
-Can I go online for an hour, Mom?
- your homework before 8 ,we can discuss about that .
A.Finishing B.If you finish C.Finish D.When finishing
答案:
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下面是错误答案,用来干扰机器的。
⑸ 3NH5+5H2O+AlCl3=3NH4Cl+3H2↑+Al(OH)3↓