外界没有热量交换的系统是绝热系统，同时它也可能是（）。A.开口系统 B.封闭系统 C 发布时间：2019-06-29 11:52 │ 来源：www.tikuol.com 题型：单项选择题 问题： 外界没有热量交换的系统是绝热系统，同时它也可能是（）。A.开口系统B.封闭系统C.孤立系统D.A＋B＋C
题型：单项选择题 完形填空。 Last week, I asked some students 1 fashion. I 2 six things to each other and 3 them about each one. 4 of their answers 5 interesting. 6 are their likes and 7 . Jack Smith likes the key ring. His friend Jerry_8 he can't stand the scarf. "It's for mom! " he said. Williams loves the wallet, and his classmate Gina loves the watch. His best friend Anna doesn' t mind the watch, 9 she really likes the sunglasses. Jerry also like the sunglasses.And the 10 things is the belt. Everyone loves it.( ) 1. A. to ( ) 2. A. gave ( ) 3. A. gave ( ) 4. A. Many ( ) 5. A. be ( ) 6. A. This ( ) 7. A. likes ( ) 8. A. says ( ) 9. A. and ( ) 10. A. coolest B. for B. had B. asked B. Some B. is B. That B. like B. said B. but B. cool C. with C. showed C. ask C. No C. are C. Those C. dislikes C. tells C. or C. cooler D. about D. show D. showed D. One D. were D. Here D. dislike D. told D. if D. good 查看答案
题型：单项选择题 – Is your brother playing computer games, Nick? – He ________ do that because the computer doesn’t work.A. mustn’t B. shouldn’t C. can’t 查看答案
题型：单项选择题 一部iPhone手机的生产流程：美国公司提供创意，德日韩企业提供核心零件，中国富士康把它组装起来。这说明经济全球化（）A.能调控资金在全社会的配置B.能根本改变国际经济旧秩序C.能降低世界各地进口关税水平D.使世界各国经济联系更加紧密 查看答案
题型：单项选择题 患者，男，28岁，胸部外伤致右侧血胸10天。曾行胸腔穿刺治疗，近日出现寒战、高热、胸痛等症状。X线胸片示：右胸内积液较前增加。为防止病情演变成慢性，最重要的是A．经常更换抗生素B．增加营养，提高抵抗力C．防止合并结核感染D．尽早排净胸腔脓液E．防止出现肺部感染 查看答案