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【单选题】
头静脉A.
也称头臂静脉
B.
收集头部的静脉血
C.
面静脉为其重要属支
D.
属于上肢浅静脉
E.
以上都不是
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【单选题】—Why did you all go roller skating _________ Tony? —Because he preferred to watch the World Cup at home. [ ]
A.
with
B.
without
C.
besides
【单选题】The general election, originally ______for 29thSeptember, is to bepostponed until December.
A.
planned
B.
timetabled
C.
scheduled
D.
decided
【单选题】Why did many southerners go to the Northeast and the Midwest during World War Ⅱ?
A.
Because they wanted to learn to like country music.
B.
Because they wanted to take music with them.
C.
Because country music was popular all over the country.
D.
Because they wanted to work in the factories there.
【单选题】The word pen originally meant 'feather used for writing with ink'. Now it refers to any devise used for writing with ink. This is an example of
A.
degradation of meaning.
B.
broadening of meaning.
C.
narrowing of meaning.
D.
elevation of meaning.
【单选题】Why did many southerners go to the Northeast and the Midwest during World, War Ⅱ?
A.
They wanted to learn to like country music.
B.
They wanted to take music with them.
C.
Country music was popular all over the country.
D.
They wanted to work in the factories there.
【简答题】在平面直角坐标系内有两个定点F 1 ，F 2 和动点P，F 1 ，F 2 坐标分别为F 1 （-1，0）、F 2 （1，0），动点P满足 | PF 1 | | PF 2 | = 2 2 ，动点P的轨迹为曲线C，曲线C关于直线y=x的对称曲线为曲线C″，直线y=x+m-3与曲线C″交于A、B两点，O是坐标原点，△ABO的面积为 7 ， （1）求曲线C的方程； （2）求m的值．
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