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[主观题]
Our volunteers are around the clock.
A、on call
B、on a daily basis
C、on duty
D、on average
E、on board
提问人:网友lindarlin122
发布时间:2022-01-07
A、on call
B、on a daily basis
C、on duty
D、on average
E、on board
A、greater trochanter
B、Lateral epicondyle
C、Medical epicondyle
D、Neck
E、Shaft
A、with no pilot aboard
B、unmanned
C、in military application only
D、of special note
E、with no operator controlling
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