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【简答题】
若函数 ， (Ⅰ)当 时，求函数 的单调增区间； (Ⅱ)函数 是否存在极值.
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皮皮学刷刷变学霸
举一反三
【简答题】逻辑覆盖属于( )测试技术。
【简答题】制动、缓冲及其它安全装置的弹簧，不得（）。长度不足时，用合格备件予以更换，不得用（）等方法来补偿。
【单选题】What does Chang E stand for?
A.
The Sun and the male principle.
B.
The Sun and the female principle.
C.
The Moon and the male principle.
D.
The Moon and the female principle.
【单选题】You should exercise more, and you see you’re already out of ________ breath after completing such _______ small task.
A.
a; the
B.
the; a
C.
/; a
D.
/; the
【单选题】If you are tired when you fly south or north,
A.
you will feel better after some sleep
B.
you should go to see a doctor
C.
you should do some exercise
D.
you should eat more
【单选题】After you sail __________ the river, you will see a park, walk __________ the park then you'll find it. [ ]
A.
cross, through
B.
across, across
C.
across, through
D.
through, across
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