单选题
We are told that in general British people think snakes are ______.
A、
not very common in Britain
B、
usually harmless
C、
more dangerous than they usually are
D、
unlikely to kill people by their bite
【正确答案】
D
【答案解析】
事实细节题。文章第一段指出蝰蛇的咬伤有时作用很小，或没作用，因此选D。
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