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举一反三
【单选题】Aboard a vessel, dividing the sum of the vertical moments by total weight yields the vessel’s_____.
A.
height of the center of gravity
B.
vertical moments
C.
righting moments
D.
inclining moments
【单选题】In those hard days , we could not leave behind___________came to us for help.
A.
who
B.
whomever
C.
no matter who
D.
whoever
【单选题】We meant to finish the work by dark, but we were so tired that we could not ______.
A.
hold on
B.
last on
C.
carry on
D.
keep to
【单选题】Which of the following describes the typical gateway arch?
A.
The vertical lines come together at the top.
B.
The vertical lines converge in the middle.
C.
The base is smaller than the top.
D.
The slope of each shoulder is different.
【单选题】They will leave for Paris _____ three o’clock in the afternoon and we’ll fly to London _______ a few weeks.
A.
after, in
B.
in, after
C.
on, in
D.
after, after
【单选题】—Could you tell me _____? —Certainly. At 8 o’clock. [ ]
A.
when will the train to Beijing leave
B.
when the train to Beijing would leave
C.
when the train to Beijing left
D.
when the train to Beijing will leave
【判断题】If the vertical wind is zero, the vertical speed components relative to the ground and relative to the air are equal.
A.
正确
B.
错误
【单选题】____,we decided to leave at once so that we could catch the train.
A.
It being pretty late
B.
Since it being pretty late
C.
Being pretty late
D.
It was pretty late
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