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【简答题】
请从下面这些单词中选出最适合的单词填入对应的空格中 Decorating Fusing Ditching resign recession amateur plague neglected blunder renovations potential trial disastrous obstacle fabulous Many people who are traditionally afraid of DIY are becoming enthusiastic about it. My husband and I are of no exception. Initially, we feared DIY like the 1. ________ and planned to invite experts to renovate our new house. But after we did the sums, we chose to do the 2. _______ by ourselves. It is the 3. __________ that made us take up DIY; however, for many others, saving money is not the main factor and 4. ___________ their own house represents a different life-style and a 5. _________ success and adds value to their lives. DIY becomes increasingly popular nowadays, yet that doesn’t mean there is no 6. _________ to it. The doers often make errors or cause 7. _________ damages, and they need more learning and practice. Many people turn to specialist magazines, television programs or the Internet for help, taking advantage of the useful information and advice. There are some areas to avoid without training, for example, gas and electrics, but some people tend to bite off more than they can chew and eventually 8. ________ into an extremely dangerous situation. One of the most 9. ___________ occasions is that a DIYer tried to install light fittings, but unfortunately he 10. __________ earthing them first, causing an electric shock eventually. Therefore, if you encounter any DIY task in these areas, never ever hesitate to turn to the professionals for help.
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举一反三
【单选题】不能进行气体交换的部位是
A.
肺泡
B.
肺泡壁
C.
肺泡管
D.
终末细支气管
E.
呼吸性细支气管
【简答题】(6分)“鸟语花香”是环境美的标志之一;乙酸乙酯是一种香料,用92g乙醇、30g乙酸和40g浓硫酸均匀混合,在一定温度下充分反应,如果实际产率是理论产率的50℅; (1)通过计算确定可得到的乙酸乙酯的质量 (2)通过计算确定反应后的混合物中水的质量分数(不考虑物质挥发) (3)在该实验中,若用1mol乙醇和1mol 乙酸在浓硫酸作用下加热,充分反应,若不考虑反应物的挥发,理论上能否生成1mol乙酸...
【单选题】不能进行气体交换的部位是
A.
终末细支气管
B.
呼吸性细支气管
C.
肺泡管
D.
肺泡囊
E.
肺泡
【简答题】观看授课录像1-1~1-12,视频演示实例1-1~1-31
【单选题】不能 进行气体交换的部位 是
A.
终末细支气管
B.
呼吸性细支气管
C.
肺泡管
D.
肺泡
【单选题】下列哪些因素是创伤造成血流灌注不足引起休克的最常见原因
A.
失血
B.
组织破坏
C.
疼痛
D.
细菌毒素作用
E.
神经内分泌功能紊乱
【单选题】乙醇在浓硫酸作用下,不可能发生的反应是
A.
取代反应
B.
消去反应
C.
加成反应
D.
脱水反应
【单选题】不能进行气体交换的部位是
A.
肺泡
B.
肺泡囊
C.
肺泡管
D.
终末细支气管
E.
呼吸性细支气管
【单选题】由直接雷击或雷电感应而引起的过电压叫做( )过电压
A.
大气
B.
操作
C.
谐振
D.
雷电
【单选题】不能进行气体交换的部位是
A.
终末细支气管
B.
呼吸性细支气管
C.
肺泡管
D.
肺泡囊
E.
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