将蝶形引入光缆牵引出管孔后,应分别用手和眼睛确认光缆引出段上是否(),如果有损伤,则放弃穿管的施工方式。
A.交叉
B.凹陷
C.损伤
D.压迫
参考答案:B, C
32.I haven’t seen Maggie since I came here.
A.as lovely a girl as
B.so a lovely girl as
C.a girl as lovely as
D.as a lovely girl as
汇率变动对国内经济的影响有哪些?