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【判断题】
人体工作负荷是指人体单位时间内承受的体力工作量的大小。A.
正确
B.
错误
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举一反三
【简答题】A．In warm air. B．In cold air C．When it reaches the polar region. D．Only when the clouds are down low.
【简答题】A．in warm air B．in cold air C．when it reaches the polar region D．only when the clouds are down low
【单选题】FOB is only appropriate when goods are shipped via______.
A.
truck
B.
air
C.
ship
D.
rail
【单选题】Why was Curt Calson so happy when they were taxiing down the runway?
A.
Because he was the first person to take off from there.
B.
Because the snow scenery was really beautiful.
【简答题】按我国现行标准规定,以试杆沉入净浆并距底板 ( )mm的水泥净浆为标准稠度净浆。
【简答题】Why was Curt Carlson so happy when they were taxiing down the runway?
【简答题】运球技术的运用时机有哪些?
【单选题】Aeroplanes can climb quickly __________.
A.
in warm air
B.
in cold air
C.
when it reaches the polar region
D.
only when the clouds are down low
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