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【单选题】
在恒 温密封容器中有 A 、 B 两杯稀盐水溶液,盐的浓度分别为 和 , 放置足够 长的时间后:A.
A 杯盐的浓度降低， B 杯盐的浓度增加
B.
A 杯液体量减少， B 杯液体量增加
C.
A 杯盐的浓度增加， B 杯盐的浓度降低
D.
A 、 B 两杯中盐的浓度会同时增大
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【单选题】This ladder is too long for this truck. We need ________ truck to carry it.
A.
a small
B.
the small
C.
a bigger
D.
a biggest
【单选题】'Truck-surfing' means
A.
skating inside a truck while it is moving
B.
skating while holding onto a moving truck
C.
skating at a speed faster than a truck
D.
skating at the end of a moving truck
【多选题】There are three kinds of freight in carriage: ( ).
A.
full-truck load
B.
half-truck load
C.
less-than-truck load
D.
container
【简答题】A．sponsored B．recommended C．criticized D．supervised
【单选题】The truck driver was badly ______ when his truck crashed into a wall.
A.
damaged
B.
hit
C.
hurt
D.
harmed
【简答题】［A］ supervised ［B］ held ［C］ managed ［D］ presided
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