目前临床使用最多,既方便又准确的反映肾小球滤过率的测定方法
A.非蛋白氮B.血尿素氮C.血肌酐测定D.尿酸清除实验E.以上都不是
参考答案:B
What depressed her was that although she kept waving her hand, nobody seemed _______ her new watch.
A.noticing
B.to have been noticed
C.to have noticed
D.having noticed
下列哪种错早期矫治最为重要()。
A.前牙反
B.牙列拥挤
C.牙性前牙深覆盖Ⅰ°
D.个别牙正锁
E.上颌左右中切牙萌出早期,出现间隙