We _____ what gift we should send to our teacher when Todd came up with a good idea. [ ]

A. argued about

B. had argued about

C. were arguing about

D. would argue about

甲苯达唑的抗虫作用特点不包括

A．高效

B．广谱

C．口服吸收迅速

D．首关消除明显

E．无明显不良反应