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问题:

[单选] No person may serve as the person in charge of both the vessel and the facility during oil transfer operations unless().

A . there is ready access between the two
B . the vessel and facility are immediately adjacent
C . the person in charge has a rapid means of transportation between the two
D . the Captain of the Port authorizes such procedure

The refrigerating agent can () at low temperature in the evaporator. expand。 evaporate。 condense。 distil。 将每层展厅之间在平时采用卷闸分割成成独立的部分,在有较大规模的活动时可以将两个或多个展厅连续成一体,形成一个大展厅,这种展厅设计形式属于()。 一体化展览空间。 单元体系。 单层空间体系。 多层空间体系。 当上升气量小时,浮阀塔的浮阀应();当上升气量大时,浮阀应()。 开启;关闭。 关闭;开启。 开启;开启。 关闭;关闭。 ()塔板板间不设降液管。 A.浮阀。 B.泡罩。 C.筛板。 D.逆流。 结焦过程也是煤中有机质转化为含碳更高的焦炭过程。 No person may serve as the person in charge of both the vessel and the facility during oil transfer operations unless().
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