The eardrum, a taut membrane, located at the end of the ear canal, separates the

游客2023-12-26 51

问题 The eardrum, a taut membrane, located at the end of the ear canal, separates the outer ear from the inner ear.

选项 A、lightly tinted
B、somewhat opaque
C、tightly stretched
D、delicately made

答案 C

解析

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