【名词&注释】
成年人(adult)、稀硫酸(dilute sulfuric acid)、硝酸银溶液(silver nitrate solution)
[单选题]下列金属中，只能与硝酸银溶液反应，不能与稀硫酸反应的是（ ）
A. 镁
B. 银
C. 铜
D. 铝
查看答案&解析
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举一反三：
[单选题]听第15段材料，回答第19至第22题。19.Why is Annie in the program？
A. She has been driving for the longest time.
B. She has been living there for nearly 84 years.
C. She has failed the driving test the most times.
[单选题]14．
A. Sunday
B. Tuesday
C. Wednesday
D. Monday
[单选题]Not all people like to work but everyone likes to play． All over the world men and women，boys and girls enjoy (21) ． Since the days of long ago，adults(成年人) and children have called their friends together to spend (22) even days playing games．Sports help people to live(23 ) * They help to keep people healthy and feeling good．When they are playing games，people (24) a lot． This is good for their health． Having(25) with their friends makes them happy．
A. In small towns，crowds(人群) meet to watch the bicycle races or the soccer games． In big cities，thousands of people (27) to see an ice-skating show or a baseball game．
B. Boys and girls in China love to (29)． There are wonderful bea-ches and there are beautiful (30) and lakes across the country． The weather is also good for swimming．
D. music
E. movies
F. sports
G. trips
[单选题]8．—__________ behind the chair?—My alarm clock．
A. What ’s
B. Where’s ．
C. Who’s
D. Where are
[单选题]8． There are many tall buildings on ___________sides of the street．
A. either
B. all
C. both
D. other
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