【单选题】At weekends,the school park is almost empty except that a few cars ________ near the entrance.
A. cluster
B. clutter
C. clutch
D. clung
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【单选题】In the photographer's finest pictures there is also a degree of ______ , which allows them to be interpreted in a variety of ways.
A. ambiguous
B. ambiguity
C. ambivalent
D. ambivalence
【单选题】Tim stretched out a hand in apology for his thoughtless remarks and was________ by a firm handshake from Mark.
A. consulting
B. consulted
C. consoling
D. consoled
活塞销与活塞销座的配合是()。
A. 间隙配合
B. 过渡配合
C. 过盈配合
活塞销与活塞销座的装配需要将活塞进行预热,原因是活塞销的热膨胀量大于活塞销座。()
A. 对
B. 错