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【简答题】
You (carry) it home. If you had asked, the shop would have delivered it for you. 2. When I got home from the bakery, I found we still had plenty of bread, so I (buy) a loaf. 3. A: Why didn’t you tell them about the incident? B: I (tell) them. They knew it already. 4. A: I had my carpet cleaned yesterday. It was very expensive. B: But you (have) it cleaned. You could have cleaned it yourself. 5. A: You got the tube tickets from a machine, I suppose? B: No, I got them by standing in a queue. A: You (stand) in a queue. You could have got them from a machine. 6. We _____________________ (hurry). There was plenty of time. 7. We had to stop at the frontier but we (open) our cases. 8. The sun came out so we (take) any rainwear on the trip. 9. You (wash) the dishes. I would’ve put them in the dishwasher. 10. We (work) overtime. Business seems to be slackening these days.
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【单选题】在人平静呼吸时,肺扩张反射不参与呼吸调节。在肺充血、肺水肿等病理情况下,由于肺顺应性降低,使肺牵张感受器发放冲动增加而引起该反射,使得
A.
肺通气量增加
B.
呼吸变浅、变快
C.
肺泡无效腔减少
D.
气体交换增多
【单选题】在人平静呼吸时肺扩张反射不参与呼吸调节在肺充血肺水肿等病理情况下,由于肺顺应性降低使牵张感受器发放冲动增加而引起的反射使得
A.
肺通气量增加
B.
气体交换增多
C.
肺泡无效腔减少
D.
呼吸变浅变快
E.
呼吸加深变慢
【简答题】100mL0.200mol/L NaOH(M NaOH =40.00g/mol)溶液所含溶质的质量为______g。
【单选题】已知M(NaOH)=40.00 g/mol。500 mL 0.2 mol/L NaOH溶液中NaOH的质量为
A.
2g
B.
4g
C.
6g
D.
8g
【判断题】由总产量曲线可以推导出总可变成本曲线( )
A.
正确
B.
错误
【单选题】技术检测是机器设备评估的基础工作之一。 ( )
A.
正确
B.
错误
【多选题】下列有关自由体积理论的叙述正确的是( )
A.
自由体积随温度升高线性增加
B.
自由体积不随温度发生变化
C.
在玻璃化温度以上,自由体积随温度降低而减小
D.
玻璃化温度以下,自由体积不再发生变化
E.
聚合物的玻璃态是等自由体积状态
【单选题】已知M(NaOH)=40.00g/mol。配制0.1mol/L NaOH标准溶液的方法错误的是
A.
将NaOH配制成饱和溶液,贮于聚乙烯塑料瓶中,密封放置至溶液清亮,取清液5ml注入1升不含的水中摇匀,贮于无色试剂瓶中
B.
将4克NaOH溶于1升水中,加热搅拌,贮于磨口玻璃瓶中
C.
将4克 NaOH溶于1升水中,加热搅拌,贮于无色试剂瓶中
D.
将2克NaOH溶于500ml水中,加热搅拌,贮于无色试剂瓶中
【判断题】技术检测是机器设备评估的基础工作之一。( )
A.
正确
B.
错误
【单选题】肾虚宫冷不孕可选用的药物是
A.
雄黄
B.
蛇床子
C.
轻粉
D.
铅丹
E.
白矾
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