含有吡嗪结构的利尿药是
A.依他尼酸B.氢氯噻嗪C.氯噻酮D.阿米洛利E.螺内酯
参考答案:D
Teachers should _____ fundamentals and difficult points in order to enable students to
acquire newmaterial. [ ]
A. move off
B. give up
C. focus on
D. put aside
患者下颌第二磨牙邻面银汞充填,剩余颊舌壁硬组织充足,但牙冠高度仅约4mm。若全冠修复,以下增加固位的措施哪项是错误的()
A.龈下边缘
B.适当增加龈边缘宽度
C.设计嵌体冠
D.增加钉洞或箱型辅助固位形
E.采用倒凹固位