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【判断题】
美拉德反应是因为烹调后产生香气的化学反应。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】信道符号发送概率相等的条件下,均值为零、方差为 的加性高斯白噪声信道下,振幅为 A 的 最佳基带传输系统的最小误码率为 。
A.
单极性二进制
B.
双极性四进制
C.
单极性四进制
D.
双极性二进制
【单选题】Which of the following is not the principle of Speech Act Theory?
A.
Illocutionary act.
B.
Locutionary act.
C.
Perlocutiionary act.
D.
Prelocutionary act
【单选题】Which of the following is not a function of money?______.
A.
To act as a medium of exchange
B.
To act as a unit of account
C.
To act as a store of value
D.
To act as a means of payment
E.
To provide a double coincidence of wants
【单选题】What is NOT included in the O' Hare Modernization Act?
A.
Another runway will be built.
B.
Existing runways should be moved and extended.
C.
New buildings are planned.
D.
New highways arc planned.
【单选题】The _____runway is the runway at an airport which is currently in use for takeoffs and landings.
A.
displaced
B.
inactive
C.
active
D.
closed
【单选题】信道符号发送概率相等的条件下,均值为零、方差为 的加性高斯白噪声信道下,振幅为 A 的 最佳基带传输系统的最小误码率为 。
A.
双极性二进制
B.
单极性四进制
C.
双极性四进制
D.
单极性二进制
【简答题】The strength of a runway turn pad should be at least to that of the adjoining runway which it serves
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