1 heard ____ the book long ago, but I have never read it.
A.out
B.from
C.of
D.with
答案:C
上颌中切牙出现的年龄()。
A.6~7岁
B.7~8岁
C.9~11岁
D.10~12岁
E.12~13岁
F.11~12岁
G.13~17岁
填充墙砌体一般项目检验中,表面平整度的允许偏差为()
A.3mm
B.5mm
C.8mm
D.10mm