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【简答题】
下面的声音动态范围的图示告诉我们()。 A. 调整输入输出信号电平的阈值比率（threshold ratio）能够减少声音信号的增益; B. 可以使用2：1或是3： 1的比率并设置低于你的混音峰值20到30分贝的阀值来进行压缩处理; C. 如果先将你的原始信号分开，压缩它，然后再将它与没有经过压缩的信号进行混音，这样是没有意义的操作; D. 限幅器能进行1:10的压缩，从而限制音量最大的声波尖峰，可以帮助你避免过载的发生;
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举一反三
【判断题】The Fifteenth Amendment said all persons born or naturalized in the United States were citizens of the United States and of the state in which they lived.
A.
正确
B.
错误
【简答题】一般来说，竞争者的市场反应可以分为这样几种类型( ) A. 迟缓型竞争者 B. 选择型竞争者 C. 无所谓型竞争者 D. 凶猛型竞争者 E. 随机型竞争者
【单选题】What did the people in the United States do as the nineteenth century progressed?
A.
They emigrated to other countries.
B.
They often settled in the West.
C.
They tended to change the place where they lived.
D.
They had a higher birthrate than ever before.
【单选题】What is true of schools in the United States according to the law?
A.
They are all the same.
B.
They are entirely different.
C.
They have the same rules.
D.
They have many similarities.
【简答题】从所处竞争地位的角度看,竞争者可以分为四类:引领者、__________、追随者、补缺者。
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