体育课上不小心肌肉挫伤后应（）。
A.傍边休息
B.及时包扎
C.及时热敷
D.及时冷敷
参考答案：D
Some people can never go above 4,000 meters because their body is unable to ______ to these extreme conditions.
A．adopt
B．adjust
C．addict
D．access
焦化加热炉的特点？
