COSPAS-SARSAT is intended to be used f

1、The following measures can be used to

The following measures can be used to improve oily water separator’s separating effect except （）Aoverhauling every two yearBworking at intervalsCrenewing filtration materialDpumping bilge water from different layers respectively

2、（）is used to protect goods not to be d

（）is used to protect goods not to be deteriorated like food and medicine.ApackagingBGreen PackagingCVacuum packagingDSpecial packaging

3、A subquery can be used to （）.

A subquery can be used to （）.A Create groups of dataB Sort data in a specific orderC Convert data to a different formatD Retrieve data based on an unknown conditio

4、The ad is mainly intended to .

The ad is mainly intended to .A encourage the British to travel in ChinaB attract the British to traditional Chinese foodC offer service of booking air tickets to touristsD provide the British with a better understanding of China.

5、Pan-Pan is to be used to announce（）.

Pan-Pan is to be used to announce（）.Aa distress messageBan urgency messageCa safety messageDa message of SMCP

6、EIGRP is being used&

EIGRP is being used as the routing protocol on the company network. While troubleshooti...