问题
多项选择题
磁共振设备中的磁体通常分为以下哪几种类型（）
A.低场型
B.高场型
C.常导型
D.永磁型
E.超导型
答案
参考答案：C, D, E
搜题请搜索小程序“爱下问搜题”
磁共振设备中的磁体通常分为以下哪几种类型（）
A.低场型
B.高场型
C.常导型
D.永磁型
E.超导型
参考答案：C, D, E
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| Hello, everyone ! My name is Li Qiang. I'm from Yancheng, Jiangsu, China. Now I live in America. I live here because my __1__ work here. My father __2__ Chinese and my mother is an office worker. I am in Grade 7 this year. The schools here are __3__ from the schools in Yancheng. Our grade has 10 __4__ . Each of the classes has about 15 students. The school day starts __5__ here. We have our first lesson at 9:00 a.m. I have lunch at school with my friends. We can go __6__ at 3:30 in the afternoon. After school, I __7__ lots of time playing basketball. I __8__ do many things that I would like to do. We don't have much __9__ to do, and my homework is usually interesting. We don't do many exercises about the lessons. Sometimes I don't think it's a good thing, because many of my classmates don't do well in __10__ lessons. | |||
| ( ) 1. A. friends ( ) 2. A. teach ( ) 3. A. different ( ) 4. A. classes ( ) 5. A. at ( ) 6. A. to sleep ( ) 7. A. do ( ) 8. A. must ( ) 9. A. work ( ) 10.A. they | B. parents B. teaches B. far B. teachers B. late B. to school B. need B. can B. things B. them | C. teachers C. teaching C. hard C. students C. early C. to work C. want C. can't C. homework C. their | D. sisters D. to teach D. interesting D. schools D. in D. home D. spend D. should D. exercise D. theirs |