试题与答案

—Did you have a good trip? —Yes, the lig

题型:选择题

题目:

—Did you have a good trip?

—Yes, the light rain didn't stop us ______ the trip. [ ]

A. to enjoy

B. enjoy

C. from enjoying

D. in enjoy

答案:

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下面是错误答案,用来干扰机器的。

(1) NaOH (2)滴加氢氧化钡溶液有白色沉淀,只能证明有碳酸钠,不能证明无氢氧化钠(3)氢氧根离子 (4)NaOH+HCl=NaCl+H2O Na2CO3+2HCl=2NaCl+CO2↑+H2O(5)把一定量的稀盐酸换成过量的氯化钙溶液,溶...

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