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【单选题】
在如图所示的速度图象中,图线 1 、 2 分别表示质点 B 运动速度和时间的函数关系, v 01 、 v 02 表示 A 、 B 质点各自运动的初速度, a 1 、 a 2 表示 A 、 B 质点运动的加速度,根据图象可知:A.
v 01 ＞ v 02 a 1 ＞ a 2
B.
v 01 ＜ v 02 a 1 ＞ a 2
C.
v 01 ＞ v 02 a 1 ＜ a 2
D.
v 01 ＜ v 02 a 1 ＜ a 2
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A.
had to
B.
would
C.
was able to
D.
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A.
haven’t stayed; has offered
B.
am not staying; offered
C.
am not staying; is offering
D.
do not stay; offers
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【单选题】The hotel would be able to float under water because it would be______.
A.
made of light material
B.
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C.
filled with air
D.
attached to pylons
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