To earn a high rating from the bond rating agencies, a firm should have（）.

The high income tax is harmful ______ it may discourage people from trying to earn more.

A．in that

B．that

C．in which

D．which

A．they use the time to explore professional interests

B．they see a gap year as a chance to recover after high school

C．they may meet requirements at home for military duty

D．they want to earn tuition for the university study by themselves

A．They earn a reliable and comparatively high income.

B．They continue to work solely to meet the urgent needs of their family.

C．They enjoy the fellowship involved in working with other women.

D．They serve as models of behavior. for others in the region.

Which of the following is NOT the reason for high dropout rate nationally？

A．Some students have to earn money to support the family.

B．Some students fail repeatedly in school.

C．Some girls become pregnant.

D．Some students get unfair treatment in school.

A．special effects often cost a lot

B．actors destroy many things

C．many actors are harmed or killed in film making

D．special-effects people earn high salaries

According to Martha, what is the most important factor in MAX's success？

A．The same customers keep buying their products.

B．They only sell the best quality products.

C．They earn high profit.

Universities charge students a rather high tuition mainly because _______.

A．they provide the students with very prosperous subjects to learn

B．they assume that their graduates can earn much more than they had paid

C．they don't get financial support from the government

D．they need much revenue to support the educational expenses

A．special effects often cost a lot

B．actors destroy many things

C．many actors are harmed or killed in film making

D．special-effects people earn high salaries

The law of diminishing returns is manifested by the fact that

A．the elder generations earn less than their children"s generations.

B．ordinary truck drivers have to work harder than full professors.

C．a college diploma is more promising than a high school diploma.

D．people with a B.A.earn more than those with a doctor"s degree.