----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