A.allows too many branches to grow in the middle
B.does not protect them from the wind
C.forces them grow too quickly
D.damages some of the small side branches.
A.make the tree grow taller .
B.does not protect them form the wind
C.get rid of the small branches
D.make the small branches thicker .
开始考试点击查看答案A.the young Americans
B.the generation gap .
C.the education of the young
D.an American social phenomenon
开始考试点击查看答案A.they had no interest
B.they found hard to cooperation with it
C.the laws block their way to do so .
D.they thought their need was neglected .
开始考试点击查看答案A.a state of mind against realism
B.a state of mind doubting everything in existence.
C.a theory advocating mutual help
D.a theory advocating individualism
开始考试点击查看答案A.The beat generation refused to do any duty
B.The beat generation was in support of almost everything traditional .
C.The beat generation believes no one except that he is over thirty .
D.The beat generation’s ideas were not impractical .
开始考试点击查看答案A.to make a wound smooth .
B.to prevent disease entering a wound .
C.to cover a rough surface .
D.to help a wound to dry .
开始考试点击查看答案A.at intervals throughout the year
B.as quickly as possible
C.occasionally when necessary
D.regularly every winter
开始考试点击查看答案A.to give practical instruction for pruning a tree
B.to give a gardener description of pruning
C.to explain how trees develop disease
D.to discuss different methods of pruning
开始考试点击查看答案A.She worked at a club on Thursday
B.She had visitors on Thursday
C.She visited a club on Thursday
D.a special visitor came on Thursday
开始考试点击查看答案A.Mrs. Clarke would have found a broken door or window .
B.He or she was still in the house
C.Things would have been thrown about
D.He or she would have needed a master key
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