Is her lifestyle the same _____ yours or different? [ ]
A. as
B. in
C. at
D. to
答案:A
为避免肝脏的首关效应,一般肛门栓在使用时应塞入直肠的距离应为
A.1cm
B.2cm
C.8cm
D.6cm
E.10cm
随机误差