第1题
Feed water heaters are necessary for () to increase its efficiency
A.the generator
B.the boiler
C.the main engine
第2题
A.satisfy popular curiosity
B.answer scientific questions
C.establish its activities
D.determine its eating habits
第3题
第4题
A.lower the production cost
B.hire a better designer
C.improve its quality
D.alter its image
第5题
A. noticeable
B. necessary
C. regrettable
D. indifferent
第6题
A.lower the production cost
B.hire a better designer
C.improve its quality
D.alter its image
第7题
A.conviction
B.principle
C.premise
D.medium
第8题
By training its employees, a company can make them______ .
A.do their work more easily
B.more interested in their work
C.willing to invest money into the company
D.possess the necessary qualities for the job
第9题
A. Because its database is disorganized.
B. Because the information required is specific.
C. Because its information is diverse and widespread.
D. All of the above.
第10题
Which of the following is TRUE according to the first paragraph?
A.Mexico has stepped into an aging society.
B.It is not necessary for Mexico to control its population.
C.Mexico population is younger than that of developed countries.
D.It is not necessary for Mexico to develop its infrastructure.
第11题
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