How dose water enter the crankcase of a diesel engine?（）

A . vaporize, with the un-flashed water remaining at the temperature at which it entered the flash chamber B . vaporize, with the un-flashed eater equalizing to the saturation conditions existing in the f lash chamber C . vaporize, with the remaining water a t a temperature greater than it entered the flash chamber D . boil, allowing steam bubbles to rise through the brine at the bottom of the flash chamber

A . eye B . hole C . balance holes D . opening

A . Have／could have been saved B . Have／could have saved C . Had／could has saved D . Had／could have been saved

A . weigh you down B . preserve body heat C . reduce your body heat D . make it more difficult to breathe

A . reduce fuel feeding B . increase fuel feeding C . keep original fuel feeding D . be overspeed

A . stuffing box B . propeller boss C . seacock D . stop-water

A . propeller hub B . lignum vitae C . shaft packing D . labyrinth seal

A . It is faster B . It is slower C . There is no change D . It remains constant for varying propeller revolutio

A . there is burning oil on the water B . there is a rescue craft in the area C . water temperature is below 40°F D . a rigid survival craft is in the area

A . Right Descending Bank span B . Left Descending Bank span C . Center span D . Water is equal under all spa

A . Addresses are allocated after a negotiation between the server and the host to determine the length ofthe agreement. B . Addresses are assigned for a fixed period of time.At the end of period，a newquest for an address mustbe made ，and another address is then assigned. C . Addresses are leased to host.A host will usually keep the same address by periodicallycontacting theDHCP sever to renew the lease. D . Addresses are permanently assigned so that the host uses the same address at all times.

A . Small sips at regular intervals during the day B . The complete daily ration at one time during the day C . One-third the daily ration three times daily D . Small sips only after sunset

A . Cylinder head valves B . Ports C . Turbo chargers D . Bleeder valve

A . Ⅰ only B . Ⅱ only C . both Ⅰ and Ⅱ D . neither Ⅰ nor Ⅱ

A . by snooping the CoS marking on the incoming frames B . by using RTP hello messages between the switch port and the Cisco IP Phone C . by using CDP D . by using DHCP snooping E . by snooping the incoming 802.1Q VLAN tag

A．He will use a master key to open the door. B．He will get Ashley's key from the woman. C．He will ask the department's secretary for help. D．He will force the lock with a hammer.

A．liberally B．actually C．theoretically D．solely

A、Nothing B、None C、Not some D、Not one

When he entered college, he begn to lern _____ lnguge. third B．the third C． three D．the three A．a third B．the third C．a three D．the three

Some companies want executives who combine administrative ability with a specialty in some branch of knowledge, such as mathematics or engineering. Other companies look for people skilled in human relations. For them, good management is the art of solving "people problems". These are interesting insights, but what are the specific traits that will help people to climb the ladder of success？ First, drive. Business takes an unusual amount of energy. A successful executive—almost by definition--is a striver. According to one industrial psychologist, 86.5% of top managers have a higher activity level than the average middle managers. Top men get tense when they are not striving. Second, people sense. Some say being able to judge people is more important than a high IQ. The skill can be instinctual, but in most cases it's learned through hard work. Third, communication ability. An executive gets things done through other people. That means his communications must come through loud and clear. Different executives make themselves understood in different ways. Some transmit ideas best face to face; others are masters of the telephone call; still others are persuasive writers. One way or another, they all communicate clearly. Fourth, calm under pressure, or as Hemingway put it, "grace under pressure". No businessman will get very far if he chokes up. (30) A．Two. B．Three. C．Four. D．Five.

A．illustrates B．demonstrates C．manifests D．exemplifies

The benefits of giving up smoking include the immediate reduction of harm to the health of the smoking and easily admission to social activities and institutions that ban smoking. In a 1988 report, the U.S. Surgeon General declared cigarette smoking to be more harmful and expensive than the use of cocaine(可卡因) , alcohol, or heroin. Recent evidence supports this claim. The United States government has collected a special tax on cigarettes for several decades. The rate rose from 8 cents per pack of 20 cigarettes in 1951 to 24 cents per pack in 1993. In other developed countries, the cigarette tax rate is much higher, ranging from 50 percent in Switzerland to 85 percent in Denmark. In the United States, the first direct action to check smoking was the regulation of a warming on cigarette packages by the Federal Trade Commission. This warning took effect in 1964 and was strengthened in 1969 to read:“Warning: The Surgeon General Has Determined That Cigarette Smoking Is Dangerouis to Your Health.”In 1971 all cigarette advertising was banned from radio and television, and cities and states passed laws requiring nonsmoking sections in public places and workplaces. 第11题：Which of the following can help a person quit smoking？ A．Using nicotine patches. B．Reading cigarette advertisements. C．Chewing ordinary gum. D．Participating in social activities.

A.Nitrogen B.Methane C.Chlorine D.Oxygen