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【单选题】
设【图片】是某10点的有限序列【图片】,【图片】为其DFT,则【图片】=______。
A.
10
B.
20
C.
40
D.
2
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参考答案:
举一反三
【简答题】A few years I was on a bicycle trip when I got off my bike for a rest. I sat down on the grass. A few seconds later, I was covered in ants. They were swarming all over me so I got up and brushed them ...
【多选题】配制盐酸肾上腺素注射液为防止氧化应采取的措施有 ( )
A.
充入惰性气体
B.
加入焦亚硫酸钠
C.
加入DETA-2Na
D.
控制pH2.5~5.0
E.
100℃流通蒸汽灭菌15分钟
【简答题】A few years ago I was on a bicycle trip when I got off my bike for a rest. I sat down on the grass. A few seconds later, I was covered in ants. They were swarming all over me so I got up and brushed t...
【多选题】当用户忘记BIOS系统管理员密码后,可采取的措施是()。
A.
其余办法均可行
B.
用CMOS跳线帽短接[2-3]根铜针约5-10秒后,再短接[1-2]根铜针
C.
重新安装操作系统
D.
拔掉CMOS电池,等几分钟再打开
【多选题】当用户忘记BIOS系统管理员密码后,可采取的措施是()。
A.
拔掉CMOS电池,过几分钟再安回;
B.
重新安装操作系统;
C.
用CMOS跳线帽短接2-3根针脚约5-10秒后,再短接1-2根针脚;
D.
以上方法均可行。
【单选题】Contrary to my expectations, the experiment ended ________ failure.
A.
at
B.
to
C.
in
D.
till
【多选题】当用户忘记BIOS系统管理员密码后,可采取的措施是()。
A.
重新安装操作系统
B.
拔掉CMOS电池,等几分钟再打开
C.
用CMOS跳线帽短接[2-3]根铜针约5-10秒后,再短接[1-2]根铜针
D.
其余办法均可行
【单选题】The plane_______ when we got to the airport [     ]
A.
had taken off
B.
was taken off
C.
will take off
D.
is taking off
【简答题】(2013·高考重庆卷)When I was little,my mother used to sit by my bed,________me stories till I fell asleep. A.having told B.telling C.told D.to tell
【单选题】(2013·重庆高考)When I was little, my mother used to sit by my bed, ________ me stories till I fell asleep.
A.
having told
B.
telling
C.
told
D.
to tell
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