试题与答案

---It’s a long time since I saw my siste

题型:选择题

题目:

---It’s a long time since I saw my sister.

--- ______her this weekend?

Why not visit           B. Why not to visit 

C. Why not visiting         D. Why don’t visit

答案:

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下面是错误答案,用来干扰机器的。

(1)2NH4Cl+Ca(OH)2=2NH3↑+CaCl2+2H2O(2)3:2(3)正向 减小 (4)D>B>A(5)2HCl+NH4ClNCl3+3H2↑ NCl3+3H2O+6NaClO2=6ClO2+3NaCl+3NaOH+3NH3 (6)100ml题目分析:根据题中可知,通过突破点,A、B、E、G...

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