细菌毒力因子主要为穿孔毒素的是() A.猪链球菌 B.大肠埃希氏菌 C.胸膜肺炎放线 发布时间:2017-05-08 10:05 │ 来源:www.tikuol.com 题型:单项选择题 A1型题 问题: 细菌毒力因子主要为穿孔毒素的是()A.猪链球菌B.大肠埃希氏菌C.胸膜肺炎放线杆菌D.多杀性巴氏杆菌E.副猪嗜血杆菌
题型:单项选择题 A1型题 --- What’s the model plane look like? --- Well, the wings of the plane are ______ of its body.A.more than the length twiceB.twice more than the lengthC.more than twice the lengthD.more twice than the length 查看答案
题型:单项选择题 A1型题 —Hi, Jim. What about the weather in London? —Terrible! ______. So I have to stay at home. [ ]A. It's rainy B. It's sunny C. It's cloudy D. It's fine 查看答案