治阳明头痛，鼻渊头痛宜选
A．紫苏B．生姜C．荆芥D．防风E．白芷
参考答案：E
高速离心机由于运转速度高，一般都带有（）
A.自动控制装置
B.平衡控制装置
C.低温控制装置
D.室温控制装置
E.速度可调装置
Their school is three times as _____ as ours. That means our school is _____ than theirs.[ ]
A. big; three times smaller
B. small; large
C. big; small
D. larger; twice smaller
