A. of
B. in
C. to
D. at
第1题:
A.TheONS15216OADMcanbeprovisionedtoadd/dropone,two,orfourchannelsviaCiscoTransportManager(CTM).
B.TheONS15216OADMconsistsonlyofafour-channelmodule,andthenumberofportsutilizeddetermineswhetheritisaone,two,orfourchannelOADM.
C.ThreeseparateOADMmodulesareavailableforone,two,andfourchannels.ThewavelengthstobedroppedandaddedareprogrammableviaCiscoTransportManager(CTM).
D.TheONS15216OADMconsistsonlyofasingle-channelmodule.Two-channelandfour-channelsupportisavailablebystackingthesingle-channelmodule.
E.TheONS15216OADMisavailableinone,two,fourchannels.Thereare32single-channelOADMmodules,16two-channelOADMmodules,and8four-channelOADMmodules.
第2题:
About ________ of the workers in the factory were born in the ________.
A.two-thirds, 1970 B.two-thirds, 1970s C.two-third,1970 D.two-third, 1970s
第3题:
12. About_______ of the workers in the factory were born in the __________.
A. two- thirds;1970
B. two- thirds ; 1970s
C. two-third ; 1970
D. two-third ; 1970s
第4题:
A. Every 5 minutes
B. Every 90 seconds
C. Every 60 seconds
D. Every 30 seconds
第5题:
[A] bodies [B] parties [C] sides [D] units
第6题:
Each life jacket light that has a non-replaceable power source must be replaced ______.
A.every 6 months after initial installation
B.every 12 months after initial installation
C.every 24 months after initial installation
D.on or before the expiration date of the power source