radio immuno precipitation assay;RIPA;

1、How is “radio silence” imposed?（）

How is “radio silence” imposed?（）ABy the On Scene Coordinator (OSC)BBy the Coast Earth Station (CES) controlling the distress communications o...

2、RFID（Radio Frequency IDentification，无线

RFID（Radio Frequency IDentification，无线射频识别器）的两个基本器件是（）。A阅读器和标签B标签和发射器C阅读器和发射器D阅读器，标签和发射器

3、Steady precipitation is typical of（）．

Steady precipitation is typical of（）．AComing cold weather conditionsBA warm front weather conditionCHigh pressure conditionsDScattered cumulus cloudsduring the day

4、Radiotelephony communication or radio

Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.Adepend onBdepending onCdependent onDdepended o

5、comet assay（彗星电泳法）

comet assay（彗星电泳法）

6、Steady precipitation is typical of（）.

Steady precipitation is typical of（）.Acoming cold weather conditionsBa warm front weather conditionChigh pressure conditionsDscattered cumulus cloud