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【单选题】
在反向击穿前,二极管的反向漏电流随着反向电压的增大而A.
A明显增大
B.
B基本不变
C.
C迅速减小
D.
D不能确定
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【简答题】My hope is that the work of leading international universities will be，and will be perceived to be, essential—not peripheral—to the progress of humanity and to global stability and security. Already t...
【简答题】唐诗咏蝉三绝都是什么?
【单选题】Please try ______ English if you want to learn English well. [ ]
A.
practise
B.
to practise
C.
practicing
D.
practices
【单选题】We spend two hours _____ _____ English every day. [ ]
A.
practise, saying
B.
to practise, talking
C.
practising, speaking
D.
practising, speak
【单选题】We should keep on _____ English every day. [ ]
A.
to practise to speak
B.
to practise speaking
C.
practising to speak
D.
practising speaking
【简答题】A．perform B．work C．position D．practise
【单选题】He spends as much time as he can ______ English every day. [ ]
A.
to practise speaking
B.
to practise to speak
C.
practise to speak
D.
practising speaking
【简答题】Interpersonal communication is your interaction with others. Talking to a ( n) ___1___ friend on campus, chatting on the phone with a classmate about a ( n ) ___ 2 ___ test, arguing the ___ 3___ of a ...
【单选题】Our sensitivity decreases with age. By age 60, most people have lost 40% of their ability to smell and 50% of their taste buds .
A.
sensible
B.
senseless
C.
sensitive
D.
sensory
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