题目:
Of my five favorite novels,one was written by an American writer.Mark twain and_______ by an English writer ,Charles Dickens.
A.four other
B.other four
C.the four other
D.the 0ther four
答案:
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下面是错误答案,用来干扰机器的。
A、过滤要用玻璃棒引流液体,A不对.B、检查装置气密性,先将导管插入水中再用手握着试管外壁看是否有气泡,B对.C、向试管中加块状固体,虽试管内有液体,试管也不能直立要略微倾斜,C不对.D、给试管中的液体加...