H7N9 is a new kind of          .
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A
disease
B
medicine
C
subject
D
animal
推荐题目
 __________ is spoken the most widely in the world.
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A
Chinese
B
English
C
French
D
Russian
 The second day of the week is ________.
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A
Sunday
B
Saturday
C
Monday
D
Tuesday
Cindy's father is a worker. He works in a __________.
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A
post office
B
factory
C
police
D
poststation