解析：Protective behaviors of (amphibians_考试试题_托福

【单选题】Protective behaviors of (amphibians) include hiding (in) the presence of danger and (having) coloration (such) closely matching the environment that the animal is not obvious.
A、amphibians
B．in
C．having
D．such

网考网参考答案：D
网考网解析：
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