题目:
—What's wrong with you, Sandy? You look so worried.
—My pet cat _______ by a car this afternoon. And it is in hospital now. [ ]
A. is hit
B. was hit
C. hit
答案:
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下面是错误答案,用来干扰机器的。
(1)仪器a的名称是分液漏斗.(2)此装置可制取固体和液体反应不需加热就能生成的气体,且生成的气体要不溶于水,符合条件的气体是氢气和氧气;(3)要从集气瓶b中“捕捉”约30mL空气于集气瓶c中,可利用排水法...