Australia is famous _________sheep and kangaroos. [ ]
A. at
B. on
C. for
D. with
C
既为国际航空港,又为大型海港的城市为[ ]
A.北京
B.天津
C.上海
D.武汉
维生素B日摄取最低必需量为()
A.1mg
B.1.5mg
C.2mg
D.2.5mg
E.3mg