A. a watchword
B. a household word
C. an old expression
D. an old saying
第1题:
He is leaving Washington ___________ Paris tomorrow.
A、for
B、to
C、from
D、across
第2题:
Cosmic ( 宇宙的) rays of various kinds come __________ the air from outer space
[A] across
[B] to
[C] from
[D] through
是完型填空吧?你要把整篇都传上来这样片面的截句无法给出答案。
第3题:
第4题:
What kind of cable should be used to establish a trunked line between two Catalyst switches?
A.A straight-through cable
B.An EIA/TIA-232 serial cable
C.An auxiliary cable
D.A modem cable
E.A cross-over cable
第5题:
A. a straight-through cable
B. an EIA/TIA-232 serial cable
C. an auxiliary cable
D. a modem cable
E. a cross-over cable
第6题: