擂台比赛中,任意一场投注中奖的概率是(),单注中奖金额是3.5元。
A、1/2
B、1/3
C、1/6
D、1/9
参考答案:B
We meet on the last Friday of every month to talk about poems and poets ______ we like.
A.when
B.where
C.that
D.which
职业接触铅的人群蛋白质的供给量占总能量的()。
A.5%~10%
B.14%~15%
C.20%~25%
D.25%~30%
E.20%~35%