问题
单项选择题 A1/A2型题
不能作为肺炎链球菌鉴定试验的是()
A.胆汁溶解试验
B.荚膜肿胀试验
C.CAMP试验
D.Optochin试验
E.菊糖发酵试验
答案
参考答案:C
解析:CAMP试验是无乳链球菌鉴定试验。
不能作为肺炎链球菌鉴定试验的是()
A.胆汁溶解试验
B.荚膜肿胀试验
C.CAMP试验
D.Optochin试验
E.菊糖发酵试验
参考答案:C
解析:CAMP试验是无乳链球菌鉴定试验。
"Efficiency is the by-product of comfort," says Dr. Erwin Tichauer of New York University. To prove this____, Dr. Tichauer uses his capability to find_____ways to do things. _____, he felt that the traditional kind of pliers(钳子)______a better design. The usual____limited hand movement and used unnecessary force because it bent the_____. So he designed a pair of pliers to allow the wrist to remain in a comfortable position. To improve the design of______and then make work easier, Dr. Tichauer____the old tools. He asks such questions as: why ____a stepladder have four legs____three are more stable? Why dose a screwdriver (螺丝刀) have to be made with straight handles? After testing his____, he has invented a new tool that causes less muscle injury and is more efficient. Tichauer is not interested in getting ____ from his inventions. In fact, he says, "We _____ people to steal from us. At New York University, we do not patent(注册专利)knowledge or invention."__ __companies have adopted some of his inventions. As a biochemist, as well as inventor, Dr Techauer____the effect of stress on areas of the body. Even easy______work may put heavy stress on small areas of body and____causes a serious disease. Thus his studies of workers in factories who use the____tool all day long are extremely____in learning about the damage on human body? Dr. Techauer knows that he can not redesign the ____ so he redesigns the tool!
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