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问题 选择题

某同学拟选用下列方法证明某溶液中不含Fe3+，而可能含Fe2+。他的最佳选择应该是

①加入足量氯水 ②加入足量KMnO4溶液 ③加入少量KSCN溶液 [ ]

A．①③

B．③②

C．③①

D．①②③

答案

答案：C

听力题

单词拼写 根据所给句子和汉语注释或英文首字母拼写单词。（共10小题，每小题1分，计10分）

小题1: He had decided to settle p________ in France and never go back to his hometown any longer.

小题2:She wore a pair of sunglasses and had her hair cut, so she was almost beyond my r________.

小题3:Before l________, the Chinese people lived a hard life and hardly had any freedom.

小题4:It feels very cold today. It is reported that the temperature can reach m________ 20℃.

小题5: She has been o________ with housework the whole morning and has no time to prepare for the examination.

小题6:Sometimes your c________ can make you become stronger because you must try your best to defeat them.

小题7:The next day the young girl w________ what she said to the manager and said sorry to him.

小题8:She decided to be a ________（体贴的）wife after being married.

小题9: Going away to college has made me ________（自立）and self-confident.

小题10:Don’t be ________（武断）to make any decision, otherwise you’ll regret it.
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解答题

已知y与x-3成反比例，且当x=4时，y=5，求：

（1）y与x之间的函数关系式；

（2）当x=2时，求y的值；

（3）当y=1时，求x的值。

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