What can we learn from the text？
A. Personality decides everything.
B. Sharing is the foundation of good relationship.
C. Family members should be fans together.
D. Interest is the mother of success.
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What did the man do in the bar in Germany？
A. Met his friends.
B. Attended a lecture.
C. Gave a performance.
电动机铭牌上标明型号为Yll2M一4，电源频率为50Hz，并知在额定运行条件下转差率是5%，则此电动机额定转速为（）r／min。
A. 712．5
B. 750
C. 1 425
D. 1 500
How ale service robots at home different from those in factories？
A. Theyperform. easier tasks．
B. They can work in small spaces．
C. Theyknow human goals better．
D. They work closely with humans．
What do we learn about Avalon？
A. It is known for ice cream．
B. It is famous for golf carts．
C. It has many modem shops．
D. It has a small population．
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