看一下这道题The second category covers payments made to obtain quicker official approval of some project, to ________ the wheels of bureaucracy.A.quicken up B.accelerate upC.speed upD.enlarge up意思、AC区别,谢谢.

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看一下这道题The second category covers payments made to obtain quicker official approval of some project, to ________ the wheels of bureaucracy.A.quicken up  B.accelerate upC.speed upD.enlarge up意思、AC区别,谢谢.
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看一下这道题The second category covers payments made to obtain quicker official approval of some project, to ________ the wheels of bureaucracy.A.quicken up B.accelerate upC.speed upD.enlarge up意思、AC区别,谢谢.
看一下这道题
The second category covers payments made to obtain quicker official approval of some project, to ________ the wheels of bureaucracy.
A.quicken up
B.accelerate up
C.speed up
D.enlarge up
意思、AC区别,谢谢.

看一下这道题The second category covers payments made to obtain quicker official approval of some project, to ________ the wheels of bureaucracy.A.quicken up B.accelerate upC.speed upD.enlarge up意思、AC区别,谢谢.
speed up = quicken
意思是quicken在这里不可用up

speed up是关于机械的速度
quicken up 指人

我感觉是这两个词虽然意思是相同的,但是可以用在哪里的语境不同吧

正确答案是C.其他三个答案都是不存在的。

A含有被动的意思,C是主动的