问题
单项选择题
正常髋关节MR行横轴位及冠状位均可清楚显示的是（）
A.皮质骨呈低信号
B.股骨头呈中等信号
C.髋臼软骨呈中等信号
D.平行于股骨颈的纤维关节囊呈黑色
E.以上全对
答案
参考答案：E
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正常髋关节MR行横轴位及冠状位均可清楚显示的是（）
A.皮质骨呈低信号
B.股骨头呈中等信号
C.髋臼软骨呈中等信号
D.平行于股骨颈的纤维关节囊呈黑色
E.以上全对
参考答案：E
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| It is often said that politeness costs nothing. In fact, __1__hearing the phrase "thank you" or "well done" means the same to employees as a modest pay__2__, researchers say. Praise and encouragement also__3__employees more likely to work hard and stay in their jobs, saving on the cost of finding__4__. A third of 1,000 workers__5__said they did not get thanked at all when they did well, and a(n) __6__third said they were not thanked enough. In both__7__, the employees said they felt__8__, meaning they were less likely to be__9__to their jobs and were more likely to look for employment elsewhere. According to the survey, praising employees has the same__10__as a 1 percent pay rise, and works out much__11__for bosses. Three out of four employees said that regular__12__by their bosses was important to them, __13__ only a quarter said they were actually given as much praise__14__they felt they needed. Those doing manual (体力的) jobs were less likely to be given any __15__for doing well. Scottish employees felt__16__undervalued, eight out of ten saying they would like more praise. However, workers in the northeast are less__17__by being buttered up by the boss, as only 69 percent said they felt the__18__to be told "well done" regularly. The research found that words of praise did more than__19__a pleasant place to work-they could __20__increase profits. | ||||
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