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【多选题】
下列各项中,属于保证计算机安全的对策有( )A.
不断完善计算机安全立法
B.
不断创新计算机安全技术
C.
不断加强计算机系统内部控制和管理
D.
减少使用计算机
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反馈参考答案：
举一反三
【单选题】When he got out of bed, Seobie ______.
A.
jumped out like a young man, to show how healthy he was
B.
got out slowly because he was too busy talking
C.
could hardly get out although he suffered badly from rheumatism
D.
got out with difficulty because his bones were stiff and painful
【简答题】When he got to _____top of the mountain, he was almost out of______ breath A .the ; a B. the ; the C the; / D. a ; /
【单选题】When he got out of bed, Scobie ______
A.
jumped out like a young man, to show how healthy he was
B.
got out slowly because he was too busy talking
C.
could hardly get out although he suffered badly from rheumatism
D.
got out with difficulty because his bones were stiff and painful
【单选题】He ________ to the lab than he set out to do the experiment.
A.
has no sooner got
B.
no sooner got
C.
will no sooner get
D.
had no sooner got
【单选题】He ______the bus and found a seat next to the window.
A.
got down
B.
got off
C.
got on
D.
got out
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