— Is this his ruler?
— No. It's _____________. [ ]
A. my
B. John
C. John's
D. our
答案:C
药理反应属于质反应的指标是()
A.血压
B.惊厥
C.死亡
D.睡眠
E.镇痛
到岸价(即成本加保险费、运费价格)的英文缩写是()
A.CCF
B.CDF
C.F-CD
D.CIF
E.COB