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【多选题】
某放大电路的幅频特性如图,该电路的放大倍数 , 该电路的通频带约 Hz(A.
20
B.
1200
C.
2000
D.
20000)
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举一反三
【单选题】听力原文： Sudan's foreign minister says Tuesday's plane crash which killed at least 115 people was a direct result of U.S. sanctions. Musafa Osman Ismail said the accident was caused by a lack of spare pa...
A.
Terrorist attacks.
B.
U.S. sanctions.
C.
Lack of spare parts.
D.
Lack of regular maintenance.
【简答题】悬架按结构分为:(__),和(__)
【单选题】假设一个经济的生产技术为柯布道格拉斯生产函数,其中劳动与资本所得各占总收入的1/2,而且A=1,如果劳动增长率为n=0.06,折旧率d=0.04,储蓄率s=3%。如果没有技术进步,那么,在稳态下,资本-劳动比率为()。
A.
0.5
B.
1
C.
2
D.
4
【简答题】【程序设计】 --------------------------------------------------------------------------- 题目:主函数中 str字符串由若干个英文单词组成,单词间用一个或多个空格间隔。 程序将 str字符串分解成单词保存在二维数组w中,并保留w中的升序单词, 删除非升序单词。 编写函数: 1.函数int diss(char str[],c...
【简答题】设函数f (x) = x2(0≤x<1)，而s(x)=∞∑(n=1) bn sin nπx，－∞设函数 f ( x )=x 2 (0 ≤ x <1) ，而 ， - ∞ $amp; x ∞，其中
【单选题】He said there was a great gap between the views expressed in the media and what ______ people were thinking.
A.
usual
B.
general
C.
normal
D.
ordinary
【简答题】Stories of a mysterious island called Atlantis date from around 400 BC. Ever since then people have been searching all over the world for it. It was Plato, a Greek philosopher, who first wrote about t...
【简答题】(1)汽车悬架按结构特点分为( )和( )两种。
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