RA CALL OUT功能正常由哪个组件去完成（）。A、仅由RA1收发机，从飞机下降到400英尺时开始B、仅由RA1收发机，从飞机下降到400英尺时开始C、由RA1或RA2随机选取D、由RA1，从飞机下降到50英尺时开始
RA CALL OUT功能正常由哪个组件去完成（）。
- A、仅由RA1收发机，从飞机下降到400英尺时开始
- B、仅由RA1收发机，从飞机下降到400英尺时开始
- C、由RA1或RA2随机选取
- D、由RA1，从飞机下降到50英尺时开始
相关考题：
The teacher told the pupils to stand in a row and not call out loudly.A. ToB. inC. andD. call out
Netscape ommunicator浏览器软件是一个多功能组件，使用其中的（）组件可以完成浏览的功能。A、DiscussionsB、ComposerC、MessengerD、Navigator
乘务员呼叫驾驶舱时（）。A、旅客标志板上ATT灯亮，音响警告组件产生高谐音B、旅客标志板上CALL灯亮，音响警告组件产生高/低谐音C、旅客标志板上CALL灯亮，音响警告组件产生高谐音D、旅客标志板上CALL灯亮，PA喇叭播出高谐音
单选题What’s the attitude of many old senior officers for a minor fire?（）AThey would like to call out all hands out for itBThey would rather handle themselves, then call out all handsCThey prefer to put it out by themselvesDThey think it is difficulty to call out all hands for a minor fire