测定缓、控释制剂释放度时,至少应测定几个取样点
A.1个B.2个C.3个D.4个E.5个
参考答案:C
直疝三角的三边是()
A.腹壁下动脉、联合腱和腹股沟韧带
B.联合腱、腹股沟韧带和腹直肌外缘
C.联合腱、腹直肌外缘和耻骨梳韧带
D.腹壁下动脉、腹直肌外缘和腹股沟韧带
E.腹壁下动脉、腹直肌外缘和耻骨梳韧带
—Our P.E. teacher isn't as young as he _____, is he?
—No, but he is one of _____ in our school.[ ]
A. looked; the youngest teacher
B. looks; the youngest teachers
C. looks; the oldest teachers
D. looked; the oldest teacher