若力F1、F2在某一轴上的投影相等,这两个力大小一定相等。
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英语翻译:奥运会
Britainhas,forcenturies,beenslowlytiltingwith________.
Duringthe1990smanyAustralianscalledfortheirnationtobecomearepublicwith________.
WhichofthefollowingstatementsisTRUE?
AfaultlinerunsthelengthofNewZealand,whichmeansthatitoftenhas________.