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【单选题】
SATAN, a program designed by Dan Farmer, can be used______.A.
to investigate the security of Internet sites
B.
to improve the security of the Internet system
C.
to prevent hackers from breaking into websites
D.
to download useful programs and information
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举一反三
【单选题】The electricity company are threatening to ______ us _____.
A.
cut; up
B.
cut; down
C.
cut; in
D.
cut; off
【简答题】A．Only if we have much in common. B．Only if we know our friends’mistakes. C．Only if we treat our disagreements wisely. D．Only if we have known one another for long.
【单选题】When we are born, we have 300 bones, but by _______________, we have only 206.
A.
publication
B.
ideology
C.
adulthood
D.
foundation
【简答题】A．cut off B．cut across C．cut down D．cut in
【单选题】They’ve () several scenes in which I appeared.
A.
cut through
B.
cut out
C.
cut in
D.
cut back
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