问题
单项选择题
可以鉴别羌虫病立克次体和立克次体属中其他立克次体的染色为
A．棉蓝染色
B．吉姆萨染色
C．Gimenez染色
D．抗酸染色
E．墨汁染色
答案
参考答案：C
解析：立克次体球杆状或呈多形态性，革兰染色阴性，但不易着色，常用Giemsa和Gimenez染色，前者将立克次体染成紫色或蓝色，后者可染成红色。
搜题请搜索小程序“爱下问搜题”
可以鉴别羌虫病立克次体和立克次体属中其他立克次体的染色为
A．棉蓝染色
B．吉姆萨染色
C．Gimenez染色
D．抗酸染色
E．墨汁染色
参考答案：C
解析：立克次体球杆状或呈多形态性，革兰染色阴性，但不易着色，常用Giemsa和Gimenez染色，前者将立克次体染成紫色或蓝色，后者可染成红色。
I prefer the stories about the swimmers at the Beijing Olympics，one of which is about Zakia Nassar. She's a 21-year-old Palestinian __21__ Bethlehem studying dentistry in Jenin. Having had neither a __22__ nor a chance to an Olympic-sized pool in the past year, she had no choice but to __23__ on her own at a 12m public pool.
There is a 50-meter __24__ in nearby Nazareth, but the Israeli government did not __25__ her to use it. Nassar was __26__ to training only when she returned to her parents' home in Bethlehem, __27__ she did so only about every two months for two days or so. __28__ the pool is only 12 meters long. “My parents and friends always __29__ me, reminding me that I had to keep training if I __30 wanted to go to the Olympics,” she said. It was only when Nassar __31__ China a month ago that she finally got the opportunity to swim in a 50m pool and enjoyed the __32__ of having a coach. When she at last took part in the Games, she swam the 50m in 31.97 seconds, a(n) __33__ of seven seconds on her personal __34__. Nassar said it was the most beautiful moment of her life. She will not __35__ on the cover of Time magazine or __36__ millions of dollars in endorsements（捐款）, but she can always say she won a race at the Olympics. For her, it wasn’t about __37__ the other swimmers or winning a prize, but about __38__ her own goal, __39__ difficult. When I think things are too difficult or I get those “I-just-can’t-do-it,” I think of her. Then I realize how __40__ the task before me really is.
|