小东同学学习浮力的知识后,认为“漂浮的物体所受到的浮力一定大干下沉的物体所受到的

题型:实验题

问题:

小东同学学习浮力的知识后,认为“漂浮的物体所受到的浮力一定大干下沉的物体所受到的浮力”,请你设计一个实验说明小东同学的说法是错误的。

实验提供的器材有:符合实验要求的量筒和足量的水。请你在全部使用提供的实验器材的基础上,再补充其他的实验器材并完成实验步骤。

补充的实验器材:

实验步骤:

考点:浮力及阿基米德原理
题型:实验题

This was one of my experiences (1) . When I was in my 30s, I was working for a large international company which had its head office in London. I was working in the (2) department.

The company had a training centre which was just outside London. Different courses were held there throughout (3) and I (4) go on one training course a year. These usually started (5) a Sunday evening and lasted six days.

Once I was (6) a week’s training course with about forty (7) sales people. I was in the bar on the Friday evening and suddenly a woman who was (8) behind the bar asked mea curious question. "I hope you don’t (9) my asking," she said, "but I’ve been (10) about it all week. Have you got a sister (11) Mary" The woman’s name was June. And she used to do various jobs at the training centre. She worked in the office, she organized all the food and drink for the centre and she worked in the bar at lunchtime and in the evening.

My answer (12) June’s question was "Yes", and June said, "I thought (13) . I met her last September when she was organizing a course here. " At that time, my sister was working for (14) company but in a different part of the country. That was (15) she came to be at the training centre.

(16) surprised me was how June guessed we were brother and sister. Three things made it even more (17) . First, she had met my sister six months before she met me. Second, they have about sixty new people every week at the training centre. So about one thousand five hundred people had (18) the centre in those six months. And (19) , my sister is married, so she doesn’t have the same family name as me.

We’re not (20) , but I guess we must look quite like each other.

13().

A.that

B.it

C.such

D.so

题型:实验题

修建西气东输管道线路走向所考虑的经济因素是

A.地形因素

B.气候因素

C.城市分布

D.旅游景观分布

题型:实验题

关于股外侧皮神经病临床表现的描述不正确的是()

A.糖尿病、肥胖是可能的病因

B.股外侧部感觉异常及疼痛

C.膝腱反射亢进

D.慢性病程,预后良好

E.一侧受累

题型:实验题

女性,70岁,半个月来颈前部肿块迅速增大伴声哑、气急等症状。以下哪项诊断是错误的()

A.甲状腺未分化癌

B.甲状腺囊肿

C.甲状腺 * * 状腺癌

D.甲状腺滤泡腺癌

E.甲状腺髓样癌

题型:实验题

医疗卫生法的基本原则()

A.卫生保护原则

B.预防为主原则

C.公平原则

D.保障社会健康原则

E.患者自主原则

更多题库