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【单选题】
稳压二极管是利用二极管的A.
正向导通时电压变化小 ()特征制造的特殊二极管。
B.
反向截止时电流小
C.
反向击穿时电压变化小而反向电流变化大
D.
单向导电
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反馈参考答案：
举一反三
【单选题】在执行完此程序段后，i，j值为 int i=1，j=10； do{ if(++i＞j--)continue； }while(i＜5)；
A.
i=6 and j=5
B.
i=5 and j=5
C.
i=6 and j=4
D.
i=5 and j=6
【简答题】十进制整数100转换为二进制数是
【单选题】You _____ the exam but you failed this time. [ ]
A.
are supposed to pass
B.
supposed to pass
C.
are supposed passing
【简答题】You should work hard. Then, you can pass the exam.A. You should work hard so that you can pass the exam.
【单选题】Would you please read the letter and ________ your classmates? [ ]
A.
pass it on to
B.
pass on it to
C.
pass it on
D.
pass on it
【单选题】无节奏流水施工的特点是( )。
A.
施工段数大于施工过程数；
B.
相邻施工过程的流水步距不尽相等；
C.
专业队在各施工段的资源用量可调整
D.
专业队在各施工段之间可能有间歇时间。
【单选题】If you want to succeed in _____ this test, you should work hard. [ ]
A.
pass
B.
to pass
C.
passed
D.
passing
【单选题】As it's known to everyone, ______ you work very hard, you won't pass the English final test.
A.
unless
B.
whenever
C.
although
D.
if
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