A:would ope
B:opened
C:had opened
D:was to ope
如图,某游乐场一山顶滑梯的高为h,滑梯的坡角为α,那么滑梯长l为( )
The 31st Olympic Games will take place in Brazil ______ 2016.
要上物理实验课了,作为物理可代表的小明去帮实验老师准备实验器材,他刚将两只条形磁体放在实验桌上,就听到老师说“重新换两只磁体吧,那两只我昨天检查了,已经消磁了,需重新充磁后才能用”。小明陷入了沉思,老师是如何判断消磁的?请你选择合适的器材,帮他设计实验方案,判断磁体是否具有磁性.
Lisa said, “The music ____ (sound) beautiful, doesn't it?”