One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is （）.

A . It requires anchor handling boats with more horsepower B . Chain chasers work in shallow water only C . Chain chasers will not work with piggyback anchors D . It takes longer to deploy anchors using chain chaser

A . less even torque B . higher cylinder head temperatures C . fewer power strokes per revolution D . greater weight/size requirement

A . the lack of cooling effect on heated materials B . that it cannot be used in a dead ship situation with no electrical power to the CO pump C . that it breaks down under extreme heat to form poisonous gases D . there is no effect on a class A fire even in an enclosed space

A . Cost B . Speed C . Lost and damage ratios D . Transit time and frequency of service

A . CO does not cool the fire B . cylinders are regulated pressure vessels C . C0 is not effective on class B fires D . C0 is not effective on class C fire

A . They conduct heat poorly B . They are expensive C . They cannot be replaced D . They require special tools for removal

A . that B . what C . it D . which

A . the extra weight required for the diesel reduction gearing B . a minimum speed for the engines that limits the minimum speed of the vessel C . the higher fuel consumption per SHP D . the low efficiency of the system when a controllable pitch propeller is used

A . it increases the likelihood of collision between the towing vessel and the disabled vessel B . recreational boaters tend to make the heaving line fast to the towed vessel as if it were the towline C . the monkey fist may injure someone D . it may reduce the catenary and increase yawing

A . inherent weakness B . tendency to rot if left damp C . danger to crew if it parts D . strength and shock absorbing abilitie

A too much energy B based on American designs C they are too costly D they are not reliable E good to quality control F free of charge

M: Well, okay. I still need the report that he was going to present at the meeting, and our partners are going to start arriving in ten minutes. W: Carl told me to get the report and give it to you. M: Good. Get it to Bryan as soon as possible, and tell him that he's going to have to present Carl's report. I'll meet the partners and try to give Bryan enough time so that he can familiarize himself with the key points. What is Carl's problem？ A．He is not prepared for an interview. B．He needs to book some time-off. C．He is not feeling well. D．He needs a report for a meeting.

A . Complex functional budgeting B . Poorly established communication channels C . No single focal point for clients/sponsors D . Slow reaction capability E . Inflexible use of manpower

A．wasting time and energy. B．creating pollution. C．not being safe. D．not always being available.

A．A.metal powders may deteriorate quickly B．B.fixed and setup costs are high C．C.non-moldable features are impossible to produce D．D.sharp corners can be hard to produce

A.The gist may sound subjective. B.The draft is hard to memorize. C.The answers are isolated points. D.The questions lack correlations.

When our population is so small that all our labor can be engaged in the group represented by A, productivity of labor (and therefore wages) will be at their maximum. When our population increases so that some of the labor will have to be set to work in group B, the wages of all labor must decline to the level of the productivity in that group. But no employer, without government aid, will yet be able to afford to hire labor to exploit the opportunities represented by C and D, unless there is a further increase in population. But suppose that the political party in power holds the belief that we should produce every thing that we consume, that the opportunities represented by C and D should be exploited. The commodities that the industries composing C and D will produce have been hitherto obtained from abroad in exchange for commodities produced by A and B. The government now renders this difficulty by placing high duties upon the former class of commodities. This meads that workers in A and B must pay higher prices for what they buy, but do not receive higher prices for what they sell. After the duty has gone into effect and the prices of commodities that can be produced by C and D have risen sufficiently, enterprisers will be able to hire labor at the wages prevailing in A and B, and establish industries in C and D. So far as the remaining laborers in A and B buy the products of C and D, the difference between the price which they pay for those products and the price that they would pay if they were permitted to import those products duty-free is a tax paid not to the government, but to the producers in C and D, to enable the latter to remain in business. It is an uncompensated deduction from the natural earnings of the laborers in A and B. Nor are the workers in C and D paid as much, estimated in purchasing power, as they would have received if they had been allowed to remain in A and B under the earlier conditions. When C and D are established, workers in these industries______. A．receive higher wages than do the workers in A and B B．receive lower wages than do the workers in A and B C．are not affected so adversely by the levying of duties as are workers in A and B D．receive wages equal to those workers in A and B

是 否

A．unlimited liability for the debts of the firm （承担对企业债务的无限责任） B．expensive costs to establish the firm （建立公司的昂贵费用） C．limited authority over the day-to-day business decisions of the firm （对公司日常业务决策的有限权限） D．limited liability for the debts of the firm （承担对企业债务的有限责任）