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【单选题】
彩色多普勒图像中，蓝色代表A.
静脉血
B.
动脉血
C.
朝向探头的血流
D.
背向探头的血流
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举一反三
【单选题】During the ten thousand miles journey across the desert, several men dropped with ______.
A.
fatigue
B.
concession
C.
grease
D.
wreck
【单选题】民事法律关系的变更是指( )
A.
民事法律关系的主体发生了变化
B.
民事法律关系的内容或者客体发生了变化
C.
民事法律关系的主体、内容和客体均发生了变化
D.
民事法律关系的主体、内容和客体至少有一项发生了变化
【简答题】A．Ten rooms. B．Thirty thousand rooms. C．Several hundred rooms. D．About three thousand rooms.
【单选题】He was ____ the Nobel Prize and received a _____ of several thousand dollars.
A.
rewarded, award
B.
rewarded, prize
C.
awarded, reward
D.
awarded, prize
【单选题】关于IEEE 802 模型的描述中,正确的是__________。
A.
对应于OSI模型的网络层
B.
数据链路层分为LLC与MAC层
C.
只包括一种局域网协议
D.
针对广域网环境
【单选题】In a big university, what may several thousand students be taking at the same time?
A.
Arts and sciences.
B.
Geometry.
C.
A compulsory course.
D.
A course in poultry marketing.
【单选题】After a run of several thousand years, it is entirely fitting that 2000 will be marked as the year the tide turned against taxation. Clay tablets recall the taxes of Hammurabi in the Babylon of 2000BC...
A.
taxation is changing and will continue to change.
B.
ways of collecting tax have changed.
C.
pensions are increasingly being paid out of taxpayer's money.
D.
public money is being misspent in most western countries.
【简答题】Some universities are very large and have several thousand students．Others are small and have only a few thousand students．Which size of university do you think is better for students, and why? Includ...
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