GatorCW发射机发出的信号是（）
A.连续波
B.非连续波
参考答案：A
6. White-collar workers across China are becoming____ concerned about the impact of the global financial crisis on their careers.
A．highly
B．strictly
C．hardly
D．increasingly
下列检查可确诊流感的是（）
A.粪便培养
B.影像学检查
C.病毒分离
D.血常规
E.血培养
