抗链球菌溶血素“O”(ASO)的参考值是
A.<200 U
B.<400 U
C.<500 U
D.<600 U
E.<800 U
参考答案:C
Have you any idea _______?
A.that how we can improve the English level within 4 months
B.that how can we improve the English level within 4 months
C.how can we improve the English level within 4 months
D.how we can improve the English level within 4 months
出口加工区顾名思义,是为促进加工贸易出口而设立的。因此出口加工区的制成产品不能销往境内,只能出口。