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【单选题】
冷却液是由( )、防冻防锈剂、添加剂三部分组成。A.
酒精
B.
醇
C.
甘油
D.
水
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【单选题】Training for a marathon requires careful preparation and steady, gradual increases in the length of the runs. ___1___, buy the best-fitting, best-built running shoes you can find. No one can say which...
A.
After six days
B.
For a good marathon runner
C.
Before you begin your training
D.
With each day, increase the distance by a half mile
E.
If they still feel good, you can begin running in them
F.
Time spent for preparation raises the quality of training
G.
Now you are ready to figure out a goal of improving distance and time
【简答题】As the season is rapidly approaching, the buyers ______ our part are badly ______ need of the goods.
【单选题】Training for a marathon requires careful preparation and steady, gradual increases in the length of the runs. ___1___, buy the best-fitting, best-built running shoes you can find. No one can say which...
A.
After six days
B.
For a good marathon runner
C.
Before you begin your training
D.
With each day, increase the distance by a half mile
E.
If they still feel good, you can begin running in them
F.
Time spent for preparation raises the quality of training
G.
Now you are ready to figure out a goal of improving distance and time
【单选题】While the others are absent you can stretch out your soul until it fills up the whole room.
A.
switch on
B.
extend
C.
throw out
D.
go along
【单选题】You can stretch out your soul until if fills up the whole room.
A.
lengthen your soul
B.
pull your soul
C.
relax and enjoy your freedom
D.
lie down
【简答题】若混合气体中氨的体积分率为0.5,其摩尔比为()A. 0.5 B. 1 C. 0.3 D. 0.1
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