接触网支柱限界应符合设计规定,允许误差-60mm,+100mm,但最小不小于()mm。
A、2000
B、2440
C、2800
D、3000
参考答案:B
阅读题,请从所给的A-F中选择恰当的选项。(其中有一项多余)
小题1:Jenny is on the playground. It is a P.E. class. But she can not find her baseballs.
小题2:Linda found a schoolbag. Her telephone number is 446-5956.
小题3:Mark lost a dictionary. It is red.
小题4: Lucy found a pen. It’s a nice black pen. It’s in her school now.
小题5:Alan lost his watch. His telephone number is 633-5819. And his e-mail address is alan1201@hot.mail.
A.
B.
C.
D.
E.
F.
成人头面、双手、双足、会阴烧伤,面积为()
A.18%
B.22%
C.15%
D.19%
E.13%