题目选项分析

The hognose snake puts on an impressive bluff, hissing and rearing back, broadens the flesh behind its head the way a cobra does and feigns repeated strikes, but with no dangerous fangs and no venom, eventually, if its pursuer is not cowed by the performance, will fall over and play dead.

The hognose snake puts on an impressive bluff, hissing and rearing back, broadening the flesh behind its head the way a cobra does and feigning repeated strikes, but it has no dangerous fangs and no venom, and eventually, if its pursuer is not cowed by the performance, will fall over and play dead.