夏朝是我国进入文明社会的开始。
参考答案:错
Many lifestyle patterns do such______great harm to health that they actually speed up________
weakening of the human body. [ ]
A. a; /
B. /; the
C. a; the
D. /; /
声导抗主要检测哪个部位的病变:()
A.外耳道
B.鼓膜
C.鼓室
D.耳蜗
E.耳郭