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【单选题】
使用计算机上网时,不应该做的是:
A.
定期更新自己的密码
B.
告诉他人自己的账号和密码
C.
保管好自己的账号和密码
D.
安装防火墙和反黑软件
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参考答案:
举一反三
【单选题】Be quiet, please. I can’t _______ the guide.
A.
watch
B.
see
C.
hear
D.
listen
【单选题】What is Mr. Holland’s opus?
A.
His symphony.
B.
His band.
C.
His students.
D.
His piano composition.
【单选题】对有序数组{5,13,19,21,37,56,64,75,88,92,100}进行二分查找,等概率情况下,查找成功的平均查找长度(平均比较次数)是()。
A.
35/11
B.
34/11
C.
33/11
D.
32/11
E.
34/10
【单选题】What ___________ / dei / is it today?  It’s Friday. [     ]
A.
date
B.
day
C.
dear
D.
dad
【单选题】----Can I listen to music in the library? ---_______
A.
Yes, we do
B.
No, we don't
C.
No, you can't
D.
Yes, we can
【单选题】I have got a lot of CDs of the most popular singers. I can't decide _____. [     ]
A.
which one to listen to
B.
to listen to which one
C.
which one should I listen to
D.
what I should listen to
【单选题】有一个长度为 12的有序表,按二分查找法对该表进行查找,在表内 各元素 等概率情况下查找成功所需的平均比较次数 是 。
A.
35/12
B.
37/12
C.
39/12
D.
43/12
【简答题】对于移动的户外电气设备,选用(............)。
【单选题】-Listen! What __ you ___? -I can hear a cat.
A.
can, look
B.
is, listen
C.
can , hear
【简答题】Dei os presentes às crianças?
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