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【多選題】
兩物體從不同高度自由落下,同時(shí)落到同一水平地面上.第一個(gè)物體下落時(shí)間為t,第二個(gè)物體下落時(shí)間為t/2.則當(dāng)?shù)诙€(gè)物體開(kāi)始下落時(shí),兩物體相距( )
B.
3gt2/8
C.
3gt2 /4
D.
gt2/4
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舉報(bào)參考答案：
舉一反三
【單選題】To ______ the amount of pollution, people are planting trees, cleaning up rivers and recycling waste.
A.
release
B.
shorten
C.
reduce
D.
decline
【單選題】What the teacher said had a(n) ______ on Tom. He has been studying hard these days.
A.
effect
B.
effort
C.
affection
D.
support
【單選題】Tom, with several children, ______ the coast now, so you can’t speak to him.
A.
are heading for
B.
is going for
C.
is heading for
D.
are going for
【單選題】It is reported that the drivers who use mobile phones while driving are more ______ to have accidents.
A.
probable
B.
possible
C.
perhaps
D.
likely
【單選題】— Do you think the film is good? — Terrific! ______
A.
It couldn’t be better.
B.
It could be better.
C.
It is still better.
D.
It couldn’t be worse
相關(guān)題目：
【單選題】To ______ the amount of pollution, people are planting trees, cleaning up rivers and recycling waste.
A.
release
B.
shorten
C.
reduce
D.
decline
【單選題】What the teacher said had a(n) ______ on Tom. He has been studying hard these days.
A.
effect
B.
effort
C.
affection
D.
support
【單選題】Tom, with several children, ______ the coast now, so you can’t speak to him.
A.
are heading for
B.
is going for
C.
is heading for
D.
are going for
【單選題】It is reported that the drivers who use mobile phones while driving are more ______ to have accidents.
A.
probable
B.
possible
C.
perhaps
D.
likely
【單選題】— Do you think the film is good? — Terrific! ______
A.
It couldn’t be better.
B.
It could be better.
C.
It is still better.
D.
It couldn’t be worse
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