题型:选择题 Progress so far has been very good. _____, we are sure that the project will be completed on time. [ ]A. However B. OtherwiseC. Therefore D. Besides 查看答案
题型:单项选择题 A1/A2型题 从一患者痰中分离一株细菌,血平板上为灰白色、黏液型菌落,用接种环可拉出长丝。革兰染色为阴性杆菌,氧化酶试验阴性,O/F试验为发酵型,苯丙氨酸脱氨酶试验阴性,动力阴性。此菌最可能是()A.大肠埃希菌B.铜绿假单胞菌C.肺炎克雷伯菌D.痢疾志贺菌E.伤寒沙门菌 查看答案