The little boy insisted that he______ nothing wrong and that he ______.

A．should do; not punish

B．did; not punish

C．had done; not be punished

D．do; should not be punished

属妊娠期毒性分级B级的抗寄生虫药物是（）

A.哌嗪、甲硝唑、吡喹酮

B.双碘喹啉、甲紫

C.噻嘧啶、恩波吡维铵

D.伯氨喹、奎宁

E.甲氟喹、甲苯咪唑