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【多选题】
通过学习,你觉得运动生物力学的学科任务是什么?A.
研究人体结构与运动功能的关系
B.
研究人体运动技术的规律
C.
研究人体运动技术的最佳化
D.
研究设计与改进运动装备
E.
研究运动损伤的力学原因
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举一反三
【单选题】Several months later, he found Mr. Jackson very difficult ________.
A.
to get along with
B.
getting along with
C.
to get along
D.
to be gotten along with
【单选题】蜗轮蜗杆的正确啮合条件是？
A.
m t2 = m a1 = m
B.
α a2 = t 1 = α
C.
m a2 = m t1 = m
D.
α t2 = α a2 = α
【单选题】在TC中,表示关系 X<=Y<=Z 的表达式为( )。
A.
(X<=Y)&&(Y<=Z)
B.
(X<=Y)AND(Y<=Z)
C.
(X<=Y<=Z)
D.
(X<=Y)&(Y<=Z)
【单选题】Several months later, he found his deskmate very difficult _______.
A.
to get along with
B.
getting along with
C.
to get along
D.
to be gotten along with
【单选题】蜗轮蜗杆的正确啮合条件是?
A.
m t2 = m a1 = m
B.
α t2 = α a1 = α
C.
α a2 = t 1 = α
D.
m a2 = m t1 = m
【多选题】蜗轮蜗杆的正确啮合条件是?
A.
m t2 = m a1 = m
B.
α t2 = α a1 = α
C.
α a2 = α t 1 = α
D.
m a2 = m t1 = m
【单选题】Foreign currency ___________ are forward transactions with standard contract sizes and maturity dates.
A.
spot transactions
B.
forward transations
C.
futures
D.
options
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