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【单选题】
不能耸肩是由于哪块肌麻痹所致（ ）A.
冈上肌
B.
冈下肌
C.
三角肌
D.
斜方肌
E.
背阔肌
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反馈参考答案：
举一反三
【单选题】“Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired, or at least patched up temporarily until the next stop.” This sentence means that ______.
A.
Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the spot
B.
Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the next port of call
C.
Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired until the next stop
D.
Any leaks in piping, propeller shaft, machinery, tanks, will have to be at least patched up
【单选题】在下图工进快进速度控制回路中,用来切换工进速度与快进速度的阀门是__________
A.
二位二通换向阀
B.
二位五通换向阀
C.
单向可调节流阀1
D.
单向可调节流阀2
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