[单项选择]The major concern expressed by underdeveloped nations regarding current economic conditions is that______.
A. their preoccupation with profits overlooks the need for more humanistic values
B. their lawyers are ignorant of international trade laws
C. there is a great need for physicians
D. they have not been able to make the best use of their own resources

[单项选择]The major concern expressed by underdeveloped nations regarding current economic conditions is that ______.
A. their preoccupation with profits overlooks the need for more humanistic values
B. their lawyers are ignorant of international trade laws
C. there is a great need for physicians
D. they have not been able to make the best use of their own resources

[单项选择]

A number of persons have expressed concern about possible health dangers to workers who use devices called video-display terminals (终端) or VDTs. These are the devices used to show computer information. Some reports link VDTs to health disorders including eye problems and muscle problems. Even the health of the pregnant women and their unborn babies is said to be endangered. Video-display terminals produce low levels of the electromagnetic radiation(电磁辐射). Experts say most modern VDTs have been designed to limit the dangers from such radiation. However, study shows that even low levels of electromagnetic radiations can affect the growth of the cells. As a result, some doctors advise women to stop working with VDTs while they are pregnant. One study found women who work with VDTs in early pregnancy are more likely than others to have their pregnancy end unexpectedly. Researchers said that this does not necessarily mean that VDTs themselves cause problems. Some exper
A. to do other work than on VDTs
B. to change their computers if necessary
C. to go back home to have a rest
D. to have their health tested

[单项选择]He expressed concern that the ship might be in danger.
A. worry
B. difficulties
C. need
D. danger

[单项选择]He expressed concern that the ship might be in {{U}}distress{{/U}}.
A. despair
B. difficulties
C. need
D. danger

[单项选择]The rising crime rate has become major concern of______ society.
A. the, the
B. a, /
C. /, the
D. a, a

[单项选择]When did Daylight Saving Time become observed nationally


A. In 1966.
B. In 1960.
C. In 1948.
D. In 1939.

[单项选择]Why are the private lands surrounding Glacier National Park so important
A. They function as a hunting preserve.
B. They are restricted to government use.
C. They are heavily populated.
D. They contain natural habitats of threatened species.

[单项选择]The passage implies that the attitudes toward Native Americans that prevailed in the Southern colonies ______.

[单项选择]WFP' s plans for underdeveloped countries emphasize the need to ______.
A. develop types of fruit trees that will resist disease
B. extend the area of land fit for cultivation
C. remove or flatten out the tops of hills
D. provide food for farm animals