Thedoctorsare________abouttheguidelinesunderwhichtheycancarryouteuthanasia.
B
本题考查的是短语区分。 A.不休息地，连续地; B.不知所措，茫然，不了解; C.任意的，随便的; D.最后，终于。句意：医生们不了解执行安乐死的准则。
How many parts is an article usually composed of? What are they?
Howmanypartsisanarticleusuallycomposedof?Whatarethey?
句子写作：The house ____is still standing.
句子写作：My presentation seemed to go well.
根据对患者人身造成的损害程度，医疗事故分为______
