检查主回路和控制回路的布线是否合理、正确,所有()螺钉是否拧紧、牢固,()是否平直、整齐。
A、电线,导线
B、电线,接线
C、接线,导线
D、导线,电线
参考答案:C
--Did you go to Kenli during the Peach Blossom Festival (桃花节)?
--Yes. The flowers were beautiful. Bees were flying them.
A.in
B.among
C.between
D.through
流过冲压空气管道的空气流量()
A.仅由进口调节板控制
B.仅由出口调节板控制
C.由进出口调节板控制
D.不进行控制