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【简答题】
光在 _ _____ 中是沿直线传播的，光在真空中或在空气中传播的速度是 米／秒。光在其它介质中的速度 ____ __ 这个速度。（选填 “ 大于 ” 、 “ 小于 ” 、 “ 等于 ” ）。
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【简答题】汽油车的排放物通常有以下四个来源:油箱、燃油喷射系统、曲轴箱通风、排气系统。
【单选题】(Staying up) all night, Tom (finished not only) the homework (but also read) many poems of his (favorite) poets.
A.
Staying up
B.
finished not only
C.
but also read
D.
favorite
【单选题】Would you please ______ me of that important appointment with Jane this Sunday?
A.
remind
B.
remember
C.
warn
D.
inform
【单选题】If you let me make a choice ______ Jane and Anne, I would say Jane is______one to be my assistant.
A.
between; the best
B.
from; the best
C.
between; the better
D.
from; the better
【简答题】一定量理想气体,从同一状态开始使其体积膨胀一倍,分别经历以下三种过程: 等压过程; 等温过程; 绝热过程。其中 ______ 过程气体对外作的功最多。
【单选题】(Staying) up all night, Tom (finished not only) the homework (but also read) many poems of his (favorite) poets.
A.
staying
B.
finished not only
C.
but also read
D.
favorite
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