采用助力制動的車輛在下坡道行駛時，嚴禁將發動機熄火，以免使油馬達失去補油而無制動能力
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Johnhardlyspeakstoanybodyintheclass,________________?
is,are,was,were,itself,himself,themselvesThetradeunion________believedtoregard________asanorganizationwherethemolestedcouldseekadviceandhelp.
Thistypeofdeskandchaircanbeadjusted________theheightofstudentsatdifferentages
Ifpaymentisnotreceived,legalactionwillbeouronly________.
IonlycalledthepolicewhenI________everythingelse.
