问题
单项选择题
医用加速器每月X射线的PDD、TPR稳定性不超过（）
A.0.5%
B.1.0%
C.1.5%
D.2.0%
E.2.5%
答案
参考答案：D
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医用加速器每月X射线的PDD、TPR稳定性不超过（）
A.0.5%
B.1.0%
C.1.5%
D.2.0%
E.2.5%
参考答案：D
As a saying goes, when life gives you lemons, then make lemonade. But how is delicious lemonade made from sour lemons? Singer-actor Yu Haoming knows how. He’s 36__ difficulties by returning to the stage. After a 37___ left him scarred, the 25-year-old man 38___ for the first time on Hunan TV’s New Year Concert on Dec. 31, 2012. His comeback captured (吸引) audiences’ 39___. They went to his Weibo page and left messages such as, “You’ve taught me what toughness means.” and “I’m 40___ of your courage. You moved me to tears by taking off your mask and 41___ onward in confidence. ” Only Yu himself knew how 42 __it was to stand on his feet again after disaster 43 __When his career as a handsome Super Boy singer and 44 actor took off, Yu got seriously burnt. He was hurt in 2010 when an explosive scene in the TV drama I Have a Date With Spring went wrong 45__ His wounds became worse because of delayed 46___ . The bums were far more than just wounds and pain for Yu. “You can’t 47___ what kind of sufferings he’s been through and how hard he’s been working to get well，” said his father on the singer’s blog. His recovery has been long and difficult. Some people might have 48 __during such a process, but Yu has 49 _ not to. He says he still has his dreams. __ 50 medicine, checkups and therapy (治疗）exercises, he plays the piano a bit every day, reads books about acting and learns English. The idiom, “ 51__ bitten, twice shy”，doesn’t really apply to him. In August he restarted to film his 52__ in the drama，although he admitted that fears still haunted (萦绕) him sometimes. “Why should I let the experience stop me going after my 53___ ?” he told the Southern Metropolis Entertainment Weekly in early December. How did Yu make lemonade? “Life gave me the 54___ gift, and I’ve just got to get on with it and turn difficulties into 55 , ’’ he told the magazine.
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