— Are you a student?
— No, but I used _____. [ ]
A. to be
B. to being
C. to do
D. to
答案:A
手外伤时,检查桡动脉、尺动脉通畅和相互吻合的试验是
A.Pratt试验
B.Burger试验
C.Allen试验
D.Hollander试验
E.Rovising试验
凝聚釜温度越高越好。