Wildthesenotionsmaysound,everyonehasitsadvocatesandopposersinthescientificcommunityaswellasitsstrikingcommercialapplication.a.althoughb.whilec.asd.asif

Question

Wild __________ these notions may sound,every one has its advocates and opposers in the scientific community as well as its striking commercial application.
a.although b.while c.as d.as if

Answer 1

加as 表示一种让步的倒装.
翻译：虽然这些想法可能听起来很令人惊讶,但是每个人在科学的领域以及它所为之努力的商业用途里面都有他的支持者与反对者,