单项选择题

本实验中加入碘粒的作用是为了指示反应是否进行。
A、正确
B、错误

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By 'wholesale plagiarism' in Paragraph 3, the writer means that ______.A.the apostrophe in all the expressions of 'it's' is omittedB.a writer named Charles Dicken plagiarizes the major novels by Charles DickensC.TV graphics writers misplace an apostrophe in Charles Dickens's nameD.The novels by Charles Dickens are copied illegally by TV program producers

A.A.the
B.a
C.TV
D.The

多项选择题

闪点测测定方法主要分为（）和（）两种 A、开口闪点 B、闭口闪点 C、手动闪点 D、自动闪点

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