Lily usually starts the day _________ breakfast. [ ]
A. with
B. from
C. at
D. of
答案:A
分幅图比例一般为()。
A.1:500
B.1:800
C.1:1000
D.1:1500
正脚背踢球时,下列哪块肌肉产生爆发式收缩______
A.腹直肌 B.股四头肌C.腓肠肌 D.臀大肌