已知函數 1 1 sin x f x x x ,記 0 lim x a f x , (I) 求 a 的值 (II) 若 x 0 時, f x a 與 k x 是同階無窮小,求常數 k 的值 .
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The only ______(effect) way to develop international skills and perspectives is through direct international experience
對資本主義工商業改造的方法是和平贖買。
______whichwaytotake,thelittleboybehavedlikearealgentlemanwhocomfortedhissisterfromtimetotime.
Everyonehopesthatwecandosomethingtomakethingsbetter,sowecan'thelp______underthestress.
下面句子中沒有語病的是