岱庙是祭泰山神的地方，历代帝王常在这里举行封禅大典。( )
参考答案：对
The Beatles, many of you are old enough to remember, came from Liverpool.[ ]
A. what
B. that
C. how
D. as
河豚中毒的潜伏期为（）
A.10分~3小时
B.3~6小时
C.6~10小时
D.10~20小时
E.12~24小时
