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【简答题】
第四周期某金属离子在八面体弱场中的磁矩为4.90B.M.，而它在八面体强场中的磁矩为零，该中心离子可能是哪个离子?
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皮皮学刷刷变学霸
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【简答题】It contains the headstock spindle, which is rotated by gear or by a combination of .
【单选题】The _____ is rotated as the piston is pushed down by the pressure above it.
A.
crankpin
B.
crankshaft
C.
break
D.
crankcase
【单选题】If there is an irresistible force, there can be no immovable object. If there is an immovable object, there can be no irresistible force. Identify the rhetorical device in this sentence.
A.
Hyperbole
B.
antithesis
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