21Most of the newly invented technical terms are _____ special discussions,and seldom get into general literature or conversation.
A.entitled to
B.involved in
C.confined to
D.absorbed in
开始考试练习点击查看答案22The owner of a car is no longer forced to rely on public transportation and is, therefore, not _____ to work locally.
A.compelled
B.obliged
C.restricted
D.repelled
开始考试练习点击查看答案23In more general use are inexpensive chopsticks of bamboo or wood that can be bought in _____ of pairs; 10 is the usual number.
A.bunches
B.bundles
C.units
D.pieces
开始考试练习点击查看答案24Postage rates depends upon several factors the type of communication,the _____ ，the weight and the method of transportation.
A.distribution
B.termination
C.destination
D.delivery
开始考试练习点击查看答案25Most of the important cities of the world suffer from traffic congestion. In fact, any advantage gained in comfort is often cancelled out in city driving by the _____ caused by traffic jams.
A.frustration
B.disturbance
C.nuisance
D.confusion
开始考试练习点击查看答案26I should have been quite willing to lend him the book he asked for,but I didn't have it with me _____ .
A.of the moment
B.for the moment
C.on the moment
D.to the moment
开始考试练习点击查看答案27As regards the development of moral standards in the growing child, _____ is very important in parental teaching. To forbid a thing one day and excuse it the next is no foundation for morality.
A.persistence
B.regularity
C.consistency
D.conformity
开始考试练习点击查看答案28Culture includes the beliefs and attitudes we learn. It is the _____ of behavior that helps people to live together and make one group of people different from another group.
A.format
B.pattern
C.form
D.mode
开始考试练习点击查看答案29The idea of using wind and solar energy as power sources is _____ new but is receiving increasing attention partly because these resources are nonpollutant.
A.in no way
B.in a way
C.at one time
D.at times
开始考试练习点击查看答案30Physical exercises and games can provide change from work, allow relief of nervous _____ ,help to correct certain physical deficiencies and protect against illness.
A.pressure
B.stress
C.tension
D.anxiety
开始考试练习点击查看答案