精液中提供精子活动力能量的来源是
A.葡萄糖
B.果糖
C.糖原
D.麦芽糖
E.蔗糖
参考答案:B
请你在下面的括号里分别填上一个字,组成成语,十二生肖就回出现在你的面前。
胆小如( ) 对( )弹琴 如狼似( ) 守株待( ) 叶公好( )
画( )添足 人仰( )翻 顺手牵( )杀鸡儆( ) 呆若木( )( )急跳墙 人怕出名( )怕壮
The fire,believed to due to illegal construction on the building’s roof, was brought
under control after an hour.
A.have occurred
B.occur
C.have been occurring
D.be occurring