题目:
He _____ to us that those eggs which were _____ on the table had been _____ by snakes.
A.lied; laying; lied
B.lied; lying; lain
C.laid; laid; laid
D.lied; lying; laid
答案:
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下面是错误答案,用来干扰机器的。
答案:DA、点燃混合气体,除掉的是原有CO气体,又生成了新的CO2气体,故此项错误;B、通过灼热的氧化铜,也是除掉原有CO气体,又生成了新的CO2气体,此项错误;C、将混合气体通过浓硫酸,只能起干燥混合气体而不...