线性方程式是
A. x=y+a
B. y=a+x
C. y=b±ax
D. y=bx
E. y=bx+a
正常成人红细胞压积的大致范围是
A. 0.15~0.25
B. 0.35~0.45
C. 0.45~0.55
D. 0.25~0.35
E. 0.55~0.65
WHO龋病流行程度评价的标准是
A. 龋齿发病率
B. 患龋率
C. 龋均
D. 龋面均
E. 无龋率
War now seems almost ___________ as both sides are reluctant to concede.
A. inevitable
B. persistent
C. consistent
D. uniform