A、
Preventing bacteria and harmful substances from entering into the body.
B、
Regulating the temperature of the body.
C、
Serving as a major sensory organ of the body.
D、
Protecting the body against sharp objects.
【正确答案】
D
【答案解析】
解析：皮肤的功能有阻止细菌和有害物质进入身体；帮助汗水加快蒸发；调节身体温度等。而皮肤不能protect us against sharp objects，故D项正确。
A、
The skin forms a large surface for radiating body heat to the air.
B、
The evaporation of sweat from the surface of the body also helps to cool the body.
C、
The matter of temperature regulation is complex.
D、
The temperature regulation involves several parts of the body, but not including brain.
【正确答案】
D
【答案解析】
解析：前三项第二段均有提到，D项与第二段最后一句不符，故选D项。
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