You should conduct a sector search under which of the following circumstances（）.
1、During a period of whiteout，you should
During a period of whiteout，you should expect which of the following（）.ASnowfall or blowing snowBLack of ability to estimate distanceCHarsh contrast between sun-illuminated snow cover and the backgroundDHazy horizons with extensive mirage effect
2、You are developing a product search p
You are developing a product search page named Search.aspx for Web application that will be integrated into Certkiller .com's existing e-Comm...
3、When underway in a channel,you should
When underway in a channel,you should keep to the（）.Amiddle of the channelBstarboard side of the channelCport side of the channelDside of the channel that has the widest tur
4、To anneal a copper gasket, you should
To anneal a copper gasket, you should heat the gasket（）Aand quench it in oilBcherry red and quench in waterCand let it cool slowly in the airDand carbonize
5、When should you conduct a visual inspe
When should you conduct a visual inspection of your towline? （）AWhenever its serviceability is in doubtBIn accordance with the manufacturer's recommendationCAt least once a monthDAll of the above
6、If a victim is unconscious，you should
If a victim is unconscious，you should first look for evidence of（）.Ahigh feverBhead injuryCbroken limbsDirregular breathing