经济全球化条件下,爱国主义不仅没有过时,而且必须弘扬。
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在规定的试验条件下,液体(固体)表面能产生闪燃的最低温度称为()
A. 燃点
B. 闪点
C. 自燃点
D. 着火点
司钻法压井第二循环周压井钻井液由井口到达钻头,套管压力不变,其值等于()。
A. 初始关井套压值
B. 初始关井立压值
C. 循环立压
D. 循环套压
经营性固定资产贷款适用于公司客户生产经营中的合法、合规、合理的资金需求,其中包括但不限于全部或部分置换借款人建设该特定资产而形成的银行贷款、借款人建设该特定资产超过规定资本金额度以外的自有资金(含股东、关联公司的借款)以及特定资产的增值资金等。()
A. 正确
B. 错误
Proper lubrication of the main bearings is more easily obtained in a single acting, four-stroke/cycle diesel engine than in a tow-stroke/cycle diesel engine because().
A. The direction of pressure on the journal in four-stroke engine is continuously
B. positive feed lubricators are installed on all bearings of four-stroke engine, whereas as a splash feed system is used on tow-stroke engine
C. four-stroke engines usually utilize a heavier grade of oil than tow-stroke engines
D. Low-stroke engines usually consume less lube oil than four-stroke engine