牙齿发育过程中所形成的牙本质()
A.继发性牙本质
B.骨样牙本质
C.原发性牙本质
D.透明牙本质
E.修复性牙本质
参考答案:C
That is the only way we can imagine _____ the overuse of water in students' bathrooms. [ ]
A. reducing
B. to reduce
C. reduced
D. reduce
高血钾症见于()
A.严重溶血
B.缺氧
C.大面积烧伤
D.长期使用潴钾利尿剂
E.肾上腺皮质功能减退