题目内容
（请给出正确答案）
A．open
B．out of order
C．disengaged
D．in use
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更多“Continuous short buzzes on the telephone indicate that the line is busy after you dial the”相关的问题
A．adaptable
B．anxious
C．firm
D．talkative
A、chain of demand
B、chain of command
C、demand hierarchy
D、continuous design structure
the telephone Co (T Co) is a company specialising in the procision of telephone systems for commercial clients. T Co has been approached by a potential customer, Push Co, who wants to install a telephone system in new offices it is opening. whilst the job is not a particularly large one, T co is hopeful of future business in the form of replacement systems and support contracts for Push Co. T Co is therefore keen to quote a competitive price for the job. the following information should be considered: (1) one of the company's salesmen has already been to visit Push Co, to give them a demenstration of the new system, together with a complimentary lunch, the costs of which totalled $400. (2)the installation is expexted to take one week to complete and would require three engineers, each of whom is paid a montly salary of $4000. the engineers have just had their annually renewable contract renewed with T Co. one of the three engineers has spare capacity to complete the work, but the other two would have to be moved from contract X in order to complete this one. contract X generates a contribution of $200 per engineer per week. there are no other engineers avaible to continue with Contract X if these two engineers are taken off the job. it would mean that T Co would miss its contractual completion deadline on Contract X by one week. As a result, T Co would have to pay a one-off penalty of $500. since there is no other work scheduled for engineers in one week's time, it will not be a problem for them to complete Contract X at this point.. (3)120 telephone handsets would need to be supplied to Push Co. The current cost of these is $18.2 each, although T Co already has 80 handsets in inventory. these were bought at a price of $16.8 each.the handsets are the most popular model on the market and frequently requested by T Co's customers. (4)Push Co would also need a computerised control system called "swipe 2". the current market price of "swipe 2" is $10800, although T Co has an older version of the system, "swipe 1", in inveentory, which could be modified at a cost of $4600. TCo paid $5400 for swipe 1 when it ordered it error two months ago and has no other use for it. the current market price of swipe 1 is $5450, although if Push Co tried to sell the one they have, it would be deemed to be "used" and therefore only worth $3000. Required: 4. which of the following statments about T Co's decision to quote for the contract is/ are correct? (a) the opportunity cost is defined as the relevant cost of taking a business opportunity to install the telephone system for Push Co. (b) The decision to install the telephone system should be taken on the basis of whether it improves profit or reduces costs for T Co. A. (a) only B. (b) only C. both (a) and (b) D. Neither (a) nor (b)
A、cautiously favorable
B、slightly negative
C、strongly negative
D、quite ambiguous
A.demanded
B.suggested
C.insisted
D.orderedV
？？ Evenwith the best will in the world,reducing our carbon emissions is not going toprevent global warming. It has become clear that even if we take the moststrong measures to control emissions, the uncertainties in our climate modelsstill leave open the possibility of extreme warming and rises in sea level. Atthe same time,resistance by governments and special interest groups makes itquite possible that the actions suggested by climate scientists might not beimplemented soon enough.？？
？？ Fortunately,if the worst comes to the worst,scientists still have a few tricks up their sleeves. For the most part theyhave strongly resisted discussing these options for fear of inviting a sense ofcom- placency that might thwart efforts to tackle the root of the problem.Until now, that is. A growing number of researchers are taking a fresh look atlarge-scale "geo-engineering" projects that might be used tocounteract global warming. "I use the analogy of methadone," saysStephen Schneider,a cli- mate researcher at StanfordUniversity in California who was among the first to drawattention to global warming. "If you have a heroin addict, the correcttreatment is hospitalization,and a long rehab. But if they absolutelyrefuse,methadone is better than heroin. "？？？？
？？ Basically the ide？？a is to apply "sunscreen" to the wholeplanet. One astronomer has come up with a radical plan to cool Earth;launchtrillions of feather-light discs into space, where they would form. a vast cloudthat would block the sun's rays. It's controversial,but recent studies suggestthere are ways to deflect just enough of the sunlight reaching the Earth'ssurface to counteract the warming produced by the greenhouse effect. Globalclimate models show that blocking just l. 8 per cent of the incident energy inthe sun's rays would cancel out the warming effects produced by a doubling ofgreenhouse gases in the atmosphere. That could be crucial,because even the mostsevere emissions-control meas- ures being proposed would leave us with a doublingof carbon dioxide by the end of this century,and that would last for at least acentury more.？？？？？？
？？According to the first two paragraphs, theauthor thinks that ________？？
A.strong measures have been taken by the government to prevent global warming
B.to reduce carbon emissions is all impossible mission
C.despite the difficulty, scientists have some options to prevent global warming
D.actions suggested by scientists will never be realized
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