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【单选题】
设 在 处的某邻域内有定义,则 在 处可导的一个充分条件是( )A.
存在
B.
存在
C.
存在
D.
存在
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反馈参考答案：
举一反三
【单选题】When calculating the cost of in-house training, many small firms do not include
A.
course fees.
B.
managers' time.
C.
accountants' costs.
【单选题】When calculating the cost of in-house training, many small firms do not include
A.
course fees.
B.
managers' time.
C.
accountants' costs.
D.
travel expenses.
【单选题】When calculating the cost of in-house training, many small finns do not include
A.
course fees.
B.
managers' time.
C.
accountants' costs.
D.
travel expenses.
【单选题】What does the woman mean?
A.
She’lluse her bike soon．
B.
Shelent her bike out．
C.
Shellborrow a bike．
【简答题】Her bike was broken, so she had to get it________(repair).
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