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【单选题】
空气中有害物质存在的形态为A.
液态、气溶胶
B.
液态、蒸气态
C.
气态、液态
D.
气态、气溶胶
E.
气态、固态
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皮皮学刷刷变学霸
举一反三
【单选题】Mooring winch should be equipped with mechanical brakes capable of holding_____.
A.
the maximum expected tension of the mooring line
B.
50% over the working tension of the mooring line
C.
the full breaking strength of the mooring line
D.
half the breaking strength of the mooring line
【单选题】The rotating units of a split windlass consists of a_____with shaped snugs to grip the anchor cable, a mooring drum for paying out or letting go of mooring wires and a warp end for warping duties.
A.
cranes
B.
mooring barrel
C.
capstans
D.
cable lifter
【单选题】下列实验室事故的处理方法不正确的是 ( )
A.
割伤时，应先清出伤口中的异物，用冷水冲洗后，止血，再去医院治疗。
B.
受酸腐蚀，先用大量水冲洗，再用碳酸氢钠或稀氨水冲洗，最后还再用水冲洗。
C.
酸或碱溅入眼中，立刻用大量水冲洗再用极稀的碳酸氢钠或醋酸溶液点入眼中。
D.
吸入氯气或溴蒸汽，可吸入少量的酒精和乙醚的混合蒸汽解毒，必要时进行人工呼吸
【单选题】A mooring winch should be equipped with mechanical brakes capable of holding____.
A.
half the breaking strength of the mooring line
B.
the full breaking strength of the mooring line
C.
the maximum expected tension of the mooring line
D.
50% over the working tension of the mooring line
【简答题】_________________________________________________ are regarded as Three Giants of the Renaissance.
【单选题】can renaissance started from _______.
A.
Pragmatism
B.
utilitarian
C.
New England transcendentalism
D.
the age of Realism
【单选题】Mooring winch should be equipped with mechanical brakes which are capable of holding ______.
A.
half the breaking strength of the mooring line
B.
the full breaking strength of the mooring line
C.
the maximum expected tension of the mooring line
D.
50% over the working tension of the mooring line
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