下列纬线最长的是( ) A.5°N B.20°S C.40°N D.60°S

题型:选择题

问题:

下列纬线最长的是(  )

A.5°N

B.20°S

C.40°N

D.60°S

考点:地球仪和经纬网
题型:选择题

根据《水利建筑工程预算定额》,土方洞挖定额中轴流通风机台时数量,是按一个工作面长( )拟定的,如超过,则需乘以修正系数。

A.100m

B.200m

C.300m

D.400m

题型:选择题

如图所示,两根金属平行导轨MN和PQ放在水平面上,左端向上弯曲且光滑,导轨间距为L,电阻不计.水平段导轨所处空间有两个有界匀强磁场,相距一段距离不重叠,磁场Ⅰ左边界在水平段导轨的最左端,磁感强度大小为B,方向竖直向上;磁场Ⅱ的磁感应强度大小为2B,方向竖直向下.质量均为m、电阻均为R的金属棒a和b垂直导轨放置在其上,金属棒b置于磁场Ⅱ的右边界CD处.现将金属棒a从弯曲导轨上某一高处由静止释放,使其沿导轨运动.设两金属棒运动过程中始终与导轨垂直且接触良好.

(1)若水平段导轨粗糙,两金属棒与水平段导轨间的最大摩擦力均为

1
5
mg,将金属棒a从距水平面高度h处由静止释放.求:金属棒a刚进入磁场Ⅰ时,通过金属棒b的电流大小;‚若金属棒a在磁场Ⅰ内运动过程中,金属棒b能在导轨上保持静止,通过计算分析金属棒a释放时的高度h应满足的条件;

(2)若水平段导轨是光滑的,将金属棒a仍从高度h处由静止释放,使其进入磁场Ⅰ.设两磁场区域足够大,求金属棒a在磁场Ⅰ内运动过程中,金属棒b中可能产生焦耳热的最大值.

题型:选择题

CAREER OPPORTUNITES

1. Full Time Secretary Position Availabel: Applicants should have at least 2 year’s experience and be able to type 60 words a minute. No computer skills required.Apply in person at United Business Ltd., 17 Browning Street, Leeds.

2. Part-time job: We require three part-time shop assistants to work during the evening.No experience required, applicants should be between 18 and 26 years old.Call 0115 - 765643 for more information.

3. Computer trained secretaries: Do you have experience working with computers? If you want to know more about us, call 0457-896754.

4. Teaching Assistants Needed: Hania’s Playshool needs 2 young teaching assistants to help with classes from 9 to 3 pm.Applicants should have references. For more information please visit www. Haniaplayschool. co. uk.

5. Weekend Work Available: We are looking for retired adults who would like to work part time on weekends for Rubberlast Group Ltd. Duties include answering the telephone and giving customers’ information. For more information call us at 0113-6741326.

6. University positions Open: The University of Bristol is looking for 4 teaching assistants to help with homework correction.Applicants should have a degree in one of the following: Political Science, English, Economics or History.Please call the University of Bristol for more information.

7. Home Delivery Representative: We are looking for someone who has excellent customer care, communication skills, a sales background with at least one year’s experience and is a good team player with creative ideas. In return we offer a starting salary of $ 20,000 and 25 days paid holiday per year. For more information please call Direct Delivery Team of Yorkshire Post on 0113-2388318.

44.Which position is most suitable for a retired person?

A.Part-time Shop Assistant.

B.Teaching Assistant in Hania’s Playschool.

C.Weekend Workin Rubberlast Group Ltd.

D.Teaching Assistant in the University of Bristol.

45.If you have good computer skills and recently graduated from university (English degree), which jobs can you apply for?

A.Job 1,2 and 7.  B.Job 3,4 and 6.  C.Job 4,6 and 7.  D.Job 2,3 and 5.

46.Which is the only position that has a formal educational requirement?

A.Full Time Secretary at United Business Ltd.

B.Home Delivery Representative for Yorkshire Post.

C.Teaching Assistant at Hania’s Playschool.

D.University Positions at the University of Bristol.

题型:选择题

属肾血管病变的是()

A.系统性红斑狼疮性肾炎 

B.多囊肾 

C.慢性肾小球肾炎 

D.急性肾小球肾炎 

E.高血压肾损害

题型:选择题

外币储蓄业务处理严格按岗位设置权限。岗位设置实行()的原则,严禁一人兼任有相互制约关系的岗位或独立完成全过程的业务操作,严禁超越权限进行业务操作。

A.专岗专职

B.相互制约

C.兼岗兼职

D.独立操作

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