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【多選題】
汽車通過拱橋最高點時，（ ）
A.
汽車對橋的壓力大于汽車所受的重力
B.
汽車速度越大，它對橋的壓力就越小
C.
汽車速度大于一定值時，汽車對橋的壓力可能為零
D.
汽車速度越大，汽車對橋面的壓力就越大
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舉報參考答案：
舉一反三
【單選題】With the help of Baidu, Buford got the information about _________ before his trip to Athens.
A.
how much would the trip cost
B.
which hotel he should stay in
C.
what would the weather be like
D.
where he should go for a trip
【單選題】__________ 3, 4 and 5, and you’ll get 12.
A.
Make up for
B.
Make use of
C.
Add to
D.
Add up
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A.
rare
B.
loose
C.
frequent
D.
gradual
【單選題】In the near future, a group of volunteers __________ to Mars and stay there forever.
A.
have been sent
B.
are going to send
C.
will be sent
D.
have sent
【單選題】It’s unkind to laugh at a person who is __________.
A.
in ruins
B.
in charge
C.
in return
D.
in trouble
相關題目：
【單選題】With the help of Baidu, Buford got the information about _________ before his trip to Athens.
A.
how much would the trip cost
B.
which hotel he should stay in
C.
what would the weather be like
D.
where he should go for a trip
【單選題】__________ 3, 4 and 5, and you’ll get 12.
A.
Make up for
B.
Make use of
C.
Add to
D.
Add up
【單選題】It is __________ to see such a heavy snow in Taizhou because of the warm weather.
A.
rare
B.
loose
C.
frequent
D.
gradual
【單選題】In the near future, a group of volunteers __________ to Mars and stay there forever.
A.
have been sent
B.
are going to send
C.
will be sent
D.
have sent
【單選題】It’s unkind to laugh at a person who is __________.
A.
in ruins
B.
in charge
C.
in return
D.
in trouble
參考解析：
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