It is（）for people to feel excited when

1、When yon（）an agent, it is usual to（）th

When yon（）an agent, it is usual to（）the appointment in writing.AA．appoint，makeBB．want，makeCC．need，makeDD．need，do

2、When is it necessary to use a public I

When is it necessary to use a public IP address on a routing interface?（）A Connect a router on a local network.B Connect a router to anoth...

3、When you meet a group of people, it is

When you meet a group of people, it is better to remember __A all their names B a couple of names firstC just their last names D as many names as possible

4、It is essential for（）to give a complet

It is essential for（）to give a complete description of damage and shortage in the discharging report.Athe office staffBthe terminal staffCthe ship's crewDthe insurance company

5、It is（）for people to work shorter hour

It is（）for people to work shorter hoursAsuggestedBrecommendedCadvisedDadvisable

6、When it is necessary to open a refrige

When it is necessary to open a refrigeration system for repairs and the system will be open for more than a few minutes, the open ends of the system should be （）.AdehydratedBpurgedCpluggedDevacuated