烧结多孔砖的强度等级是按()确定的。
A.抗压强度
B.抗折强度
C.A+B
D.A+抗折荷载
参考答案:D
There is something wrong with my bike, so I’ll get it tomorrow.
A.repairing
B.being repaired
C.to repair
D.repaired
髋关节的活动范围大,能作()。
A.屈伸
B.内收
C.外展
D.内旋、外旋
E.环转