望動態(tài)中,小兒喜伏臥者,多為
A、乳食內(nèi)積A
暫無解析
SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.
設(shè)平面區(qū)域,則D繞y軸旋轉(zhuǎn)所成旋轉(zhuǎn)體體積為_____
Iwonderifhecouldgetit________(do)beforetomorrow.
甲乙兩人賽跑,計(jì)時開始時,甲在乙前方10(單位:m)處,圖中實(shí)線表示甲的速度曲線v=v1(t)(單位:m/s),虛線表示乙的速度曲線v=v2(t),三塊陰影部分面積的數(shù)值依次為10,20,3,計(jì)時開始后乙追上甲的時刻記為t0(單位:s),則()
He________methathedecidedtoleaveonMonday.