晚期骨关节结核下列不正确的是（）
A.形成流注脓肿
B.形成窦道
C.关节脱位
D.儿童骨垢受刺激肢体延长
E.脊柱结核形成截瘫
参考答案：D
-----Don’t buy her chocolate as birthday present.
------No. Of course not. I know very well that she _______.
A．has a sweet teeth
B．has a sweet tooth.
C．doesn’t have a sweet tooth
D．doesn’t have teeth.
为什么混凝土在潮湿条件下养护时收缩较小，干燥条件下养护时收缩较大，而在水中养护时却几乎不收缩？
