代表未经适航审定的,底面尺寸为1534mm×1194mm,适配于宽体机型的底舱.并无叉槽的空运集装箱类型是()。
A.AKE
B.AKN
C.DPE
D.DPN
参考答案:C
压缩实验除了要设置机械限位和软限位外,还必须设置()限位。
A、位移限位
B、载荷限位
We have a high regard for Mr. Black because he always tries to ________ his principles. [ ]
A. live up to
B. look forward to
C. catch up with
D. put up with