The utterance meaning of a sentence varies with the c in which it is uttered.
参考答案:context
我国肝豆状核变性(WD)患者的ATP7B基因突变热点有()
A.H1069G
B.P992L
C.R778L
D.R919G
E.T935M
已缴纳出口关税的货物,因故未装运出口申报退关的,纳税义务人自缴纳税款之日起______可以向海关申请退税。
A.1个月内 B.3个月内C.6个月内 D.1年内