洗涤风机风门的位号()。
A.HV-2315
B.HV-2711
C.PV-2405
参考答案:B
We carefully the first report the second. [ ]
A. compared; with
B. compared; to
C. complex; in
D. compete; with
新建电信主机房净高应为3200~3300mm。因此在设有过桥走线架(槽道)的机房,列架最高高度不应大于()毫米。
A.2950
B.3000
C.3050
D.3100