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【简答题】
在一定范围内增大后负荷，等长收缩时间______，肌肉收缩产生的张力______，肌肉缩短的速度和长度______。
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【简答题】电气火灾是由于输、配电线路____、____或____等引起的。
【单选题】Lennondisengaged himself fromthe music business in 1975 to raise his infant son Sean. Which of the following phrase can be used to replace the underlined part?
A.
came from
B.
withdrew from
C.
prevented from
D.
resulted from
【简答题】types examples effects Slow music Ballads and some forms of (1)____music It often creates a (2)_______atmosphere that is good for (3)________after a busy day Very slow music below 50 beats per minute ...
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