Moisture should be kept out of an R-12 system because it tends to cause （）.

A . Physical locations B . External partners and universities C . The company’s internal departments D . The company’s software deployment need

A . Master B . Default C . Shared D . Commo

A . low pressure at all times B . full pressure at all times C . low pressure at intermittence D . full pressure at intermittence

A . slowly carried away B . carried out with a period of delay C . promptly carried out D . paid by the captai

A .  ATC  B .  Paris C .  Berlin D .  Sydney E .  Manifast F .  Human Resource

A . in contact with the fill opening to guard against static spark B . from making contact with the fill opening to guard against static spark C . in contact with the fill opening to allow proper venting D . None of the above

A . air from contacting the oil vapors B . permitting re-ignition boiling of the heated oil C . spontaneous combustion below the oil surface D . toxic fumes from escaping to the surface

A . ① only B . ② only C . Both ① and ② D . Neither ① nor ②

A . In master's cabin B . In third office's cabin C . In a break-glass-type enclosure conspicuously located adjacent to the room D . In a locked locker conspicuously located adjacent to the room

A . crankcase lubricating oil pump B . fuel oil pump C . air compressor D . auxiliary blower

A . In the Captain's office B . In the sea cabin C . At the GMDSS operating position D . Anywhere on board the vessel

A . only in fog B . only between the hours of sunset and sunrise C . only when entering and leaving port D . at all time

A . Transportation B . Handling and carrying C . Marketing forecasts

A .  Create one OU that includes both the web servers and the database servers. B .  Create one OU that includes the web servers and one OU that includes the database servers. C .  Create one OU that includes the web servers. Then Place the database servers in the Computer Containers. D .  Place the web server and the database servers in the Domain Controller OU.

A . above B . below C . equal to D . uncertai

A．Because children may swallow them B．Because children may break them C．Because children may bite them D．Because children may lose them

A.sediment contamination B.fuel filter clogging C.moisture formation D.inadequate transfer pump suction head

It is the same in history. Many things have been forgotten because we do not have any written account of them. Sometimes men did keep a record of the most important happenings in their country，but often it was destroyed by fire or in a war. Sometimes there was never any written record at all because the people of that time and place did not know how to write. For example, we know a good deal about the people who lived in China 4, 000 years ago, because they could write and leave written records for those who lived after them. But we know almost nothing about the people who lived even 200 years ago in central Africa because they had not learned to write. Sometimes, of course, even if the people cannot write, they may know something of the past. They have heard about it from older people and often songs and dances and stories have been made about the most important happenings, and these have been sung and acted and told for many generations, for most people are proud to tell what their fathers did in the past. This we may call ？remembered history ” . Some of it has now been written down. It is not so exact or so valuable to us as written history is, because words are much more easily changed when used again and again in speech than when copied in writing. But if there are no written records, such spoken stories are often very helpful. Which of the following is NOT suggested in the passage？ A.Written history is more reliable. B.Written records play an important role in learning about history. C.A written account of our daily activities helps to answer many questions. D.Where there are no written records, there is no history. Little is known about the central Africa 200 years ago because ______.A.there was nothing worth writing down at that time B.people there ignored the importance of keeping a record C.people there did not know how to write D.the written records were perhaps destroyed by a fire “ Remembered history” refers to ______.A.history based on a person’s imagination B.stories of important happenings passed down from mouth to mouth C.songs and dances about the most important events. D.both B and C “ Remembered history” is regarded as valuable only when ______.A.it is written down B.No written account is available C.it proves to be timely D.People are interested in it It is suggested that we could have learned more about our past if ancient people had ______.A.kept a written record of every past event B.burnt their written records in wars C.told exact stories of the most important happenings D.made more songs and dances 请帮忙给出每个问题的正确答案和分析，谢谢！

A．Follow me,please B．There is a table for you now． C．Sorry to have kept you waiting for so long, sir． D．One table is available now, come h E．