题目

Finally, I entered the university. Because of my careful savings, I did not have to work during the school year. Then, summer came and it was time to work harder than ever. I continued working as a waitress at night, instructed tennis camps several mornings a week and worked as a secretary for a few hours in the afternoons. I even decided to take a class at a community (社区) college. This class at the community college saved me $650. It was an extremely tiring summer and made me anxious to return to my relatively easy life at the university. During my second and third years of under如图所示，是某同学自制的气压计，下列说法错误的是A. 自制气压计时需注意瓶口密闭B. 瓶内的气压大于外界的大气压C. 把自制气压计从温州带到西藏，看到玻璃管内水柱的高度将减小D. 若将瓶内装满水，该装置可以验证“力可以使固体发生微小形变”