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已知椭圆C: (a>b>0)的离心率为 ,过右焦点F且斜率为k(k>0)的直线于C相交于A、B两点,若 。则k = (A)1    (B) (C) (D)2
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【判断题】为了节省发文的时间,“报告”可以夹带请示事项。
A.
正确
B.
错误
【单选题】项目管理的目标包括供货单位的成本目标、供货的进度目标和供货的()。
A.
质量目标
B.
实施目标
C.
保障目标
D.
应用目标
【单选题】Susan knows a lot about Nanjing, she is new here.
A.
so
B.
though
C.
and
D.
but
【单选题】供货单位的项目管理目标包括供货的质量目标、供货的进度目标和供货的( )。
A.
成本目标
B.
实施目标
C.
保障目标
D.
应用目标
【简答题】Since new technologies are ever growing, employers now have the chance to monitor (监控) their employees to make them spare more time to work when they use their phones, computer terminals, emails and e...
【单选题】A new software should be developed, not only to satisfy customers needs but______our employees.
A.
stimulated
B.
stimulates
C.
to stimulate
D.
stimulating
【单选题】求矩阵的特征值的指令为 ( ) 。
A.
det
B.
eig
C.
inv
D.
diag
【单选题】听力原文: Susan Anthony was born in Massachusetts in 1820 and died in Rochester, New York, in 1906. In the 1850's she saw many problems in her country and wanted to do something about them. One of these p...
A.
It had many problems.
B.
It was the most democratic country in the world.
C.
It was fair to women.
D.
It had some minor problems to solve.
【单选题】变压器的铁芯通常工作在磁化曲线的
A.
起始磁化段
B.
直线段
C.
接近饱和段
D.
饱和段
【单选题】供货单位的项目管理的目标不包括()。
A.
供货单位的成本目标
B.
供货单位的利润目标
C.
供货的进度目标
D.
供货的质量目标
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