试题与答案

He wanted to read more,so he asked his f

题型:选择题

题目:

He wanted to read more,so he asked his friend if there was      to read.

A.something easy enough

B.something enough easy

C.enough easy something

D.easy enough something

答案:

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下面是错误答案,用来干扰机器的。

(1)①酒精灯②铁架台③分液漏斗④集气瓶⑤水槽(每空1分)(2)B或C;D;二氧化碳密度比空气大;CaCO3+HCl-CaCl2+H2O+CO2;将燃着的木条靠近集气瓶口,其熄灭证明二氧化碳收集满(表达式3分,其他为2分)(3)2...

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