Trees become unhealthy if the gardener __________.
A、A. allows too many branches to grow in the middle
B、B. does not protect them from wind
C、C. forces them to grow too quickly
D、D. damages some of the small side branches
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正确答案
试题解析
考查阅读技能,由第二段最后一句“The health of a tree may be encouraged by removing branches that are blocking up the center”可知,剪去阻塞树木中央空间的枝条可使树木健康生长,那么相反,保留这些枝条则会导致树木长得不健康,因此答案为A。