题目

用is或has填空。 (1) Wang Miao short but she long hair. (2) My mother tall but her hair short. (3) Sally of medium build. (4) Ma Yan short blonde hair. (5) My math teacher of medium height and he very heavy. (6) Mary very thin and she long brown hair. 答案:【1】is【2】has 【1】is【2】is 【1】is 【1】has 【1】is【2】is 【1】is【2】has在某状况下,H2S和CS2的混合气体在足量氧气中充分燃烧,生成的SO2的物质的量是CO2的n倍(n>2),则原混合物中,H2S和CS2的物质的量之比为 [  ] A.B. C.D.n-2
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