内直肌附着点距角膜缘()。
A.5.0mm
B.5.5mm
C.6.9mm
D.6.5mm
E.7.7mm
参考答案:B
解析:内直肌附着点距角膜缘5.5mm。
以[x]表x的整数部分,即不大于x的最大整数.例如[3.4]=3,[-3.4]=-4.方程9x2-8[x]=1的所有有理数根是______.
The novel A Dream in Red Mansion is really a ______ book which deserves reading again.
A.worth
B.worthy
C.worthwhile
D.changeable