类风湿性关节炎活动期的标志是
A.自发痛
B.梭状指
C.晨僵
D.压痛
E.畸形
参考答案:C
----Does Jim do his new job well?
---- __________ his old job.
----How stupid! I fear there's no hope for him.
A.No better than
B.Not better than
C.No so well as
D.No as well as
试验表明轴颈与曲柄臂连接的过渡圆角处的最大应力出现在()。
A.曲柄臂中心对称线的下方
B.曲柄臂中心对称线的上方
C.曲柄臂中心对称线的左侧
D.曲柄臂中心对称线的右侧