按照国家规定，从事物业管理的人员应具备什么条件？

用下边提供的器材测量小电动机的输出功率．

器材：电压表、电流表、滑动变阻器、电源、开关和导线等

（1）在图中画出你设计的电路图．已知电动机直流电阻与电流表内阻相同，滑动变阻器限流作用不大（电动机、电源和开关已画出）．

（2）若闭合电键后，调节滑动变阻器，电动机未转动时电压表的读数为U₁，电流表的读数为I₁；又调节滑动变阻器，电动机转动后电压表的读数为U₂，电流表的读数为I₂．则此时电动机的输出功率为______．

问卷法的主要特点包括（）。

A.成本低

B.标准化程度高

C.收效快

D.可以直接收集数据

A funny story circulated recently about Sir Arthur Conan Doyle, creator of the fictional detective Sherlock Holmes. Doyle clearly told of a time when he climbed into a   1    in Paris. Before he could    2     a word, the driver turned to him and asked, “Where can I     3     you, Mr. Doyle?”

Doyle was    4   . He asked the driver if he had ever seen him before.

“No, sir,” the driver responded. “I have    5    seen you before.” Then he    6    : “This morning’s paper had a story about you being on     7     in Marseilles. This is the taxi stand where people who return from Marseilles always arrive. Your    8    color tells me you have been on vacation. The    9     spot on your right index finger suggests to me that you are a  writer. Your clothing is very English, and not French.    10    up all those pieces of information, I    11    that you are Sir Arthur Conan Doyle.”

“This is truly amazing!” the writer   12    with excitement. “You are very like my    13    creation, Sherlock Holmes!”

“There’s one other thing,” the driver said.

“What’s that?”

“Your    14     is on the front of your suitcase.”

Perhaps the     15    was no master detective, but he was observant! He paid attention and paying attention is an important part of living    16    .

Life isn’t a matter of milestones, but of    17   . A life lived to the full is lived from moment to moment,    18    from milestone to milestone. It is more of a series of days in which we truly pay attention, than a few    19   events along the way.

Pay attention to the things of life, to people, to events, to your senses, even to the ordinary. Your life will never    20    beauty. By making the most of the moments, you make the most of the years.

1. A. train                B. taxi               C. bus             D. plane

2. A. write                 B. hear              C. say             D. read

3. A. take                  B. meet              C. wait            D. leave

4. A. pleased               B. scared            C. disappointed     D. surprised

5. A. just                  B. never              C. ever            D. always

6. A. admitted            B. started             C. explained        D. remembered

7. A. business               B. duty              C. holiday          D. work

8. A. skin                  B. hair               C. clothes          D. shoes

9. A. blood                 B. dirt               C. mud             D. ink

10. A. Making              B. Taking             C. Putting          D. Adding

11. A. concluded             B. realized            C. imagined        D. expected

12. A. sighed               B. screamed           C. whispered         D. roared

13. A. mental           B. physical            C. fictional         D. psychological

13. A. license               B. address            C. resume           D. name

15. A. driver                 B. writer             C. detective         D. waiter

16. A. well               B. fully               C. happily          D. peacefully

17. A. stages              B. steps               C. periods          D. moments

18. A. more than            B. less than            C. rather than       D. other than

19. A. small                 B. major              C. personal          D. social

20. A. lack                 B. create              C. appreciate         D. enjoy

牙髓—牙本质复合体的增龄变化表现在以下几个方面，除了

A．髓腔由大变小
B．细胞由多变少
C．牙髓组织钙变
D．纤维成分减少
E．牙本质渗透性降低

骨筋膜室综合征，最主要的治疗措施是（）

A.给予血管舒张剂，消除血管痉挛

B.抬高患肢，以利消肿

C.被动按摩，以利消肿

D.做臂位麻醉，解除血管痉挛

E.解除包扎固定物，经观察不见好转，切开筋膜减压