[多选题]发动机没有怠速的主要原因是( )。
A.操纵手柄未放到底
B.供油量不均匀
C.调速器调整不当
D.怠速回位弹簧过软或折断、脱落

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After 20 years of marriage, a husband may still not understand his wife. How is it that she is never at a (1) for words How can she (2) the names of a couple they met on (3) years ago Now we know (4) to tell him: it’s her brain.
Although there are obviously cultural (5) for the differences in emotions and behavior, (6) breakthrough research reveals that the (7) of many puzzling differences between men and women may (8) in the head. Men’s and women’s brains (9) much in common, but they are definitely not the same (10) size, structure or insight. Broadly speaking, a woman’s brain, like her body, is ten to fifteen per cent smaller than a man’s, (11) the regions dedicated to language may be more densely (12) with brain ceils.
Girls generally speak earlier and read faster. The reason may be (13) females use both sides of the brain when they read. In (14) , males rely only on the left side.
At every age
A. have
B. share
C. divide
D. store

英译中：Logistics network