题型:选择题 It was reported in the newspaper that one of our students got the first place in the last Provincial Chemistry Olympic Contest in June.A.having been heldB.to be heldC.being heldD.held 查看答案
题型:单项选择题 急性粟粒型肺结核治疗方案中可选()A.异烟肼、链霉素、卷曲霉素B.异烟肼、卡那霉素、吡嗪酰胺C.氨硫脲、乙胺丁醇、对氨水杨酸D.利福平、异烟肼、丙硫异烟胺E.异烟肼、链霉素、对氨水杨酸 查看答案