某化学小组用一定量AgNO3和Al（NO3）3的混合溶液加入铜粉和锌粉，充分反应后过滤，得到溶液甲和固体乙，如图所示：则：①溶液甲中一定含有Al（NO3）3和Zn（NO3）2；②固体乙中一定含有A

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某化学小组用一定量AgNO₃和Al（NO₃）₃的混合溶液加入铜粉和锌粉，充分反应后过滤，得到溶液甲和固体乙，如图所示：

则：①溶液甲中一定含有Al（NO₃）₃和Zn（NO₃）₂；

②固体乙中一定含有Ag，可能含有Cu和Zn；

③若溶液甲是蓝色，则溶液甲一定含有Al（NO₃）₃、Zn（NO₃）₂和Cu（NO₃）₂；

④向固体乙上滴加盐酸有气泡产生，则溶液甲中一定没有AgNO₃和Cu（NO₃）₂．

上述四种说法正确的个数为（）

A：1

B：2

C：3

D：4

上一题下一题 0.0难度选择题更新时间:2011-11-15 08:56:20

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D

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五位中国学生要去美国留学，他们想要找住家。请仔细阅读题中的学生的个人情况说明，并从A至F六个选项中，帮助他们选择最适合的住家.
____ Zhang Chao likes Chinese food. He hopes his host family speak a little Chinese.
____ Li Wei likes doing sports. He wants to live near a park.
____ Liu Yong hopes to live near his school---Reading School. He prefers a bed room with a bathroom
____ Chen Yao wants to live in a big bedroom cheaper than ￡350 a month. She can’t stand pets.
____ Hu Mei loves pets. She would like a bedroom cheaper than ￡220 a month.

A Host Family: The Browns Nationality: English Address: 16 Church Road (near Reading School) Room: Small with a bedroom Price: ￡290/month	B Host Family: The Johnssons Nationality: English Address: 10 Shine Road (near Wallen School) Room: Small Price: ￡260/month	C Host Family: Wang Lin Nationality: Chinese Address: 40 Queen's Road Room: Small Price: ￡230/month Other information: Good at cooking Chinese food
D Host Family: The Kings Nationality: English Address: 75 Eric-high Road Room: Big Price: ￡300/month	E Host Family: Judy Nationality: English Address: 6 King's Road Room: Small Price: ￡210/month Other information: a pet dog	F Host Family: The Rays Nationality: English Address: 22 Woldingham Road (near Palmer Park) Room: Big Price: ￡370/month

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