国境卫生检疫法规定的传染病是指检疫传染病和监测传染病。 ( )
参考答案:对
It is an irrevocable( )which can not be changed.
A.letter of credit
B.bill of lading
C.quarantine
D.quality
降脂药辛伐他汀按照药物妊娠毒性分级,属于()
A.A级
B.B级
C.C级
D.D级
E.X级