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【单选题】
视角与镜头的焦距成{单选}关系。A.
反比；
B.
正比；
C.
等比；
D.
无任何关系；
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【单选题】Which condition would most likely result in fog ().
A.
Warm moist air blowing over cold water
B.
Airborne dust particles
C.
Warm moist air blowing over warm water
D.
Dew point falling below the air temperature
【简答题】I think it likely that the train will be delayed by the dense fog．
【简答题】Mr. Grey was the manager of a small office in London. He lived in the country, and went to work by train. He liked walking from the station to his office if it wasn’t raining, because it gave him some...
【单选题】Fog is likely to occur when there is little difference between the dew point and the ______.
A.
relative humidity
B.
air temperature
C.
barometric pressure
D.
absolute humidity
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