关于肌松药的作用特点，下列错误的是（）。
A.长时效肌松药后加用中时效或短时效肌松药，长时效肌松药使其后加用的中时效或短效肌松药时效延长
B.化学结构为同一类的两种肌松药联合应用其作用协同
C.增加剂量或预注非去极化类肌松药可缩短其起效时间
D.去极化肌松药与非去极化合用时其作用相互拮抗
E.非去极化肌松药的起效时间与强度成反比，肌松强度弱的肌松药其起效时间快
参考答案：B
Dragon Head-Raising (龙抬头) Day is a traditional Chinese festival. It comes on the day of the second lunar (农历的) month. In 2014, it is March 2. On the day in ancient times, people put paths of ashes (灰) into kitchens and around water vats (缸). This was the dragon into the house. On this day people eat noodles, dumplings and fried pancakes. All the day’s foods are after dragons. For example, people eat “dragon whisker (龙须)” called “dragons teeth”. In some ancient Chinese stories, dragons have power over the wind and rain. They often rain to the world on the second day of the second lunar month. It is said that after that day there will be more and more rain. This is the day is often called “Spring Dragon Day”. It was hoped that the help of the dragon, ploughing (耕种) would be easier and the autumn would bring a good harvest. It was said that a haircut during the first lunar month brought luck to the uncles in family. This is why you still see many people their hair cut on Dragon Head-Raising Day.
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