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【单选题】
关于静摩擦力,下列说法正确的是:A.
受静摩擦力作用的物体一定是静止的
B.
静摩擦力不一定总是阻力
C.
静摩擦力一定比滑动摩擦力大
D.
两个相互接触的静止的物体之间一定有静摩擦力的作用
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举一反三
【单选题】The difference between 'writer' and 'reporter' or 'journalist' isnt that the journalist reports—she【C1】______sources, calls people, takes them out to lunch, and generally【C2】______as an intermediary b...
A.
designs
B.
fosters
C.
develops
D.
cultivates
【单选题】The main difference between a newspaper journalist and a TV journalist is that
A.
the former goes to the details of a story and the later generalizes it.
B.
the former works alone and the later works with a team to back up him.
C.
the former can't sum something up in a short time but the later can.
D.
the former is thoughtless and the later sits around all day to take notes.
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