A police officer whose job is to find information about crimes that have occurred and to catch criminals is a ______.
A. accountant
B. videographer
C. detective
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To dismiss (someone) from a job is to _____ someone.
A. fire
B. email
C. update
To talk about the personal lives of other people is to ______ about other people.
A. fire
B. gossip
C. update
An increase in the amount of your pay is a ______.
A. raise
B. assignment
C. scare
热噪声属于白噪声,()温度和()通带,可减少噪声功率。
A. 提高 增加
B. 提高降低
C. 降低降低
D. 降低提高