下列不属于固定矫治器优点的是（）
A.固位好，支抗足
B.牙齿移动效率高
C.能矫治复杂错畸形
D.疗程短
E.口腔卫生好
参考答案：E
--Who won the __ race? --Liu Mei did.And I won the ___.
A．girl’s 100-metres; girl’s 400 metres
B．girl’s 100-metre; girl’s 400 metres
C．girl’ 100-metres; girl’s 400 metres
D．girls’ 100-metres; girl’s 400 metres
下列各项对肝癌诊断最有价值的是（）
A.肝区痛
B.进行性肝肿大
C.肝质地硬
D.肝触痛
E.肝边缘钝
