以下属于设备电接口检查项目的有（）。A.输入口允许衰减 B.PDH接口输出信号波形和

It often appears that we have more to gain by speaking than by listening. One big advantage of speaking is that it gives you a chance to control others’ thoughts and actions. Whatever your goal is — to have a boss hire you, to   36  others to vote for the person of your  37  or to describe the  38   you want your hair cut ... the key to success seems to be the  39  to speak well.

Another  40  advantage of speaking is the chance it provides to  41   the admiration, respect, or liking of others. Tell jokes, and everyone will think you’re really a  42   man. Tell them all you know, and they’ll be  43  by your wisdom. But keep quiet, and it seems as if you are a  44  person.

Finally, talking gives you the  45  to release (释放) energy in a way that listening can’t. When you’re   46  , the chance to talk about your problems can often help you feel better. In the same way, you can often   47   your anger by letting it out orally. It is also helpful to   48   your excitement with others by talking about it,  49   keeping it inside often leaves you feeling as if you might burst.

While it is true that talking does have many advantages, it’s important to  50   that listening can do good to listeners, too. As you’ll soon read, being a good listener is one good way to  51  others with their problems; and what better way is there to have others   52  you? As for controlling others, it may be true that it’s hard to be persuasive while you’re listening, but your  53  to hear others out will often make them open to your ideas   54  . Listening is often reciprocal (互惠的). “You get what you  55  .”

36. A. insist           B. advise    C. persuade             D. suggest

37. A. friend      B. relation      C. choice         D. leader

38. A. idea            B. way       C. means         D. plan

39. A. resource      B. energy          C. power          D. ability

40. A. obvious       B. easy       C. new            D. special

41. A. gain            B. grasp     C. remain         D. seize

42. A. successful    B. simple     C. wise         D. stupid

43. A. affected    B. impressed   C. instructed     D. moved

44. A. fruitless          B. priceless     C. worthless    D. senseless

45. A. pleasure          B. course      C. duty        D. chance

46. A. in trouble     B. in danger   C. in debt       D. in silence

47. A. reduce       B. lengthen     C. deepen        D. widen

48. A. control       B. share      C. enjoy         D. remove

49. A. or               B. so              C. for               D. though

50. A. suppose          B. notice     C. realize     D. imagine

51. A. fail         B. cure       C. hurt        D. help

52. A. appreciate  B. listen to    C. envy      D. support

53. A. kindness   B. favor    C. willingness  D. eagerness

54. A. by turns              B. in return   C. in turn     D. in order

55. A. lose         B. ask for          C. need        D. give

在水平桌面上沿一条直线放两个完全相同的小物块A和B（可看作质点）质量均为m，它们相距s．B到桌边的距离是2s．对A施以瞬间水平冲量I，使A沿A、B连线以速度v₀向B运动．设两物体碰撞时间很短，碰后不再分离．为使两物体能发生碰撞，且碰撞后又不会离开桌面，求：

（1）物体A、B与水平面间的动摩擦因数μ应满足什么条件．

（2）若μ=

v 20

4gs

，那么A、B碰撞过程系统损失的动能是多少？A、B停止运动时，到桌面右边缘的距离s′是多少？

肉鸡于出售前_____天禁止使用抗生素，以防药物残留。

A．7

B．10

C．15

D．7~8

办税服务厅在受理涉税事项时，应当建立（），记录受理涉税事项名称、事项内容、受理时间、受理人员姓名、需传递或转交的部门及所承诺的办结时限等。

A、《涉税事项受理登记簿》

B、《税务文书领取通知书》

C、《税务文书传递卡》

D、《统一收款收据》

《中国南方电网有限责任公司安全生产禁令》第七条规定：严禁未经（）进入设备安全距离范围内。

A、许可

B、停电

C、验电

D、接地