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【判断题】
在成熟期,企业可以采取产品改进策略。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】Why is he overjoyed in eating the first slice of pumpkin?
A.
Because it is the first taste of food that is grown by himself
B.
Because it is fresh out of the field
C.
Because it means that he will not go hungry again
D.
Because it tastes really delicious
【单选题】According to the passage, Green Peak ______.
A.
is the first company to install wireless sensor networks
B.
promotes the application of wireless sensor networks
C.
supplies batteries operating on harvested energy
D.
benefits handsomely from communication technology
【单选题】L isten! Do you hear someone __________for help?
A.
calling
B.
call
C.
to call
D.
called
【单选题】It's prudent to start any exercise program gradually at first．
A.
workable
B.
sensible
C.
possible
D.
feasible
【简答题】人体最灵活的关节是
【简答题】Why was his father disappointed with him at first?
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