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单选题
According to the passage, frogs are vulnerable in backyards because they are ______.
A
harmed by the toxins used to eliminate insect life
B
exposed to moving logs that disrupt their feeding
C
endangered by the predators of slugs and snails
D
threatened by careless motorists ignorant of frog migration patterns
E
denied dark places to produce defense mechanisms
参考答案
参考解析
解析：
文中提到人们在后院里放置毒素以消灭昆虫的做法，故选A项。
文中提到人们在后院里放置毒素以消灭昆虫的做法，故选A项。
更多 “单选题According to the passage, frogs are vulnerable in backyards because they are ______.A harmed by the toxins used to eliminate insect lifeB exposed to moving logs that disrupt their feedingC endangered by the predators of slugs and snailsD threatened by careless motorists ignorant of frog migration patternsE denied dark places to produce defense mechanisms” 相关考题
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