The quantity of oil injected into the cylinder can be regulated ().
A. by turning the pump plunger
B. by vary the fuel valve spring force
C. by no means by controlling the governor
D. by enlarging or diminishing the injection hole
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把金融市场划分为资本市场与货币市场的依据是()。
A. 金融产品的期限
B. 金融交易的交割期限
C. 是否在交易场所
D. 交易对象
浇筑柱子混凝土时,其根部应先浇()目的是防止烂根。
A. 5~10mm厚水泥浆
B. 5~10mm厚水泥砂浆
C. 50~100mm厚水泥砂浆
D. 500mm厚石子增加一倍的混凝土