湾流安装的VHF通信的可调节最小频率间隔是多少?
A、25KHZ
B、8.33KHZ
C、根据选择,可以是25KHZ或8.33KHZ
D、都不对。
参考答案:C
---Cathy seems to be very happy.
---Surely she is. Having passed all the tests, she felt a great weight off her mind.
A.taking
B.taken
C.take
D.to be taken
下颌第一恒磨牙最高的髓角是()。
A.近中颊侧
B.近中舌侧
C.远中侧
D.远中颊侧
E.远中舌侧