— ____________ are the apples?
— Three yuan.[ ]
A. How many
B. How much
C. How old
D. How
答案:B
简述喷油器在检修时发现哪些不正常现象应进行拆检和更换磨损件?
AIDP患者其脑脊液中蛋白增高出现在()
A.2周
B.1~2周
C.1周
D.2~3周
E.3周