大伟同学用一个距手3m高的定滑轮拉住重100 N的物体，从滑轮正下方沿水平方向移 发布时间：2017-07-16 22:00 │ 来源：www.tikuol.com 题型：计算题 问题： 大伟同学用一个距手3m高的定滑轮拉住重100 N的物体，从滑轮正下方沿水平方向移动4m，如图所示，若不计绳重和摩擦，他至少做了多少功？
题型：计算题 用方框中所给词的适当形式填空。from,add,part, have, frien dly,should,problem,take,fact,but Where to Eat Carol's Cafeteria 1 the most delicious food in town but there is one 2 . It's not in the most funniest 3 0f town. It 4 about fifteen minutes to walk there 5 school. My friends and I usually go to Lenny's Lunch Bar. It's closer 6 the food isn't really bad.The people at Lenny's al'so 7 than those at Carol's. In 8 Lenny's is the friendliest place in town. They have the biggest hamburgers and the best salad. 9 their pizza ls pretty bad. You 10 never have pizza at Lenny's.1. _________2. _________3. _________4. _________5. _________6.________7. _________8. _________9. _________10. _________ 查看答案
题型：计算题 男性，66岁。肺癌晚期，有多处转移，给予化疗姑息治疗，病人得知病情后情绪低落，不想讲话，护士在与其交流时应A．责备病人的态度不积极B．告诉病人只要积极治疗就可以康复来安慰病人C．给病人讲笑话D．告诉病人不要有消极情绪E．告诉病人如不想说话可以不说，有护士在旁陪伴 查看答案
