快乐答题 积分多多南极地区位于地球的（ ）,是指（ ）度以南的广大地区,包括

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• 1Which of the following sentence is NOT an elliptical sentence（省略句)？A．I want to improve

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  A．I want to improve my French but I don"t know how.

  B．Some of the answers were correct while I don"t know which.

  C．This is what I want to say and I hope that you can follow me.

  D．I touched the door to see if the dirt on it could be eliminated, and it surely could.

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• 2复变函数与积分问题!答案说Z=0 是函数的可取奇点!这个不是二级极点么?
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• 3Which of the following sentence is an elliptical sentence（省略句)？A．On the top of the tree

  Which of the following sentence is an elliptical sentence(省略句)？

  A．On the top of the trees were some birds.

  B．The police found a large box under his bed, in which were so many tools.

  C．He didn"t sell half as many apples as he thought he would.

  D．I can"t remember which city he comes from.

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• 4想要多少积分,就回答下面的问题!（1）一个长方体的蓄水池从里面量长7.6米,宽5米如果池中以蓄水22
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• 5Their rival company is planning a______ takeover.A．viciousB．spitefulC．hostileD．mean

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• 7Some foreigners bold remarks against the authorities raised everyones eyebrows. The underl

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• 9______is the speed at which something moves in a particular direction.A．VoltageB．VelocityC

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  A．Voltage

  B．Velocity

  C．Proportion

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• 101.设随机变量X的概率密度为f(x)= 则P{0.2
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