过度磨耗产生影响,不正确的是()。
A.髁突后上移位
B.咀嚼效率降低
C.提颌肌的力量代偿性减弱
D.关节内压增高
E.以上都不是
参考答案:C
—My mother has a backache in hospital
—_________________.
A.What’s the matter?
B.I’m sorry to hear that
C.I’m not feeling well
D.She’ll be all right soon.
大宗交易的成交申报须经证券交易所确认。( )