题目

I don't like people ________ don't help others when they are in trouble.A.which B.who C.whose 答案:【答案】B【解析】句意:我不喜欢当别人陷入麻烦时袖手旁观的人。考查定语从句。which 引导定语从句时,先行词是物; who关系代词,引导定语从句时,先行词是人,作定语从句的主语; whose在定语从句中作定语。该定语从句的先行词people是人,关系代词在从句做主语用who引导,故选B。20、一定条件下,氮的某种氧化物与NH3反应只生成N2和H2O,若生成的N2和H2O的分子个数之比为7:12,则该氮的氧化物的化学式为 NO2.
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