当超过（）时，钢材表面上涂装的漆膜就容易产生气泡而局部鼓起，使附着力降低。
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《塔里木油田钻井井控实施细则》规定：如果P关≥70MPa，选用（）压力等级的井控装备。
A. 21MPa
B. 35MPa
C. 70MPa
D. 105MPa
根据《规范》要求，2000总吨以下船舶的应急消防泵应设固定式动力泵，常用汽油机驱动。
A. 正确
B. 错误
What is a benefit of using subflows?（）
A. decreases the amount of flows
B. collects information about callers to agents
C. creates a framework for CRS Server status reporting
D. decreases latency through increased bandwidth on CRS Server
E. provides more efficient management of flows that are called by multiple other flow
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