Some children like _____ snowmen in winter. [ ]
A. make
B. making
C. having
D. to get
答案:B
行李运价的起码里程为多少?
临床上常用放射免疫技术检测的项目不包括
A.微量白蛋白B.激素C.抗甲状腺球蛋白抗体D.转氨酶E.CA-125