质点做直线运动的位移x与时间t 的关系为x =" 5t" + t 2(各物理量均

题型:选择题

问题:

质点做直线运动的位移x与时间t 的关系为x =" 5t" + t 2(各物理量均采用国际单位制单位),则该质点

A.第1s内的位移是5m

B.前2s内的平均速度是6m/s

C.任意相邻1s内的位移差都是1m

D.任意1s内的速度变化量都是2m/s

考点:匀变速直线运动
题型:选择题

下列定义变量错误的是( )。

A.int al;

B.char chl;

C.int dl=10;

D.bool bll;

题型:选择题

U型管换热器内流体流量不变,管子的传热面积相同,则U型管换热器的管内流体流速可较单程换热器提高()倍。

A、1

B、2

C、3

D、4

题型:选择题

下列属于基金合同所包含的重要信息的是()

Ⅰ.基金运作方式,运作费用,基金发售、交易、申购、赎回的相关安排,基金投资基本要素

Ⅱ.基金估值和净值公告等事项

Ⅲ.基金合同特别约定的事项

A.Ⅰ、Ⅲ

B.Ⅰ、Ⅱ、Ⅲ

C.Ⅱ、Ⅲ

D.Ⅰ、Ⅱ

题型:选择题

Washington, DC has traditionally been an unbalanced city when it comes to the life of the mind. It has great national monuments, from the Smithsonian museums to the Library of Congress. But day-to-day cultural life can be thin. It attracts some of the country’s best brains. But far too much of the city’s intellectual life is devoted to the minutiae of the political process. Dinner table conversation can all too easily turn to budget reconciliation or social security.

This is changing. On October 1st the Shakespeare Theatre Company opened a 775-seat new theatre in the heart of downtown. Sidney Harman hall not only provides a new stage for a theatre company that has hitherto had to make do with the 450-seat Lansburgh Theatre around the corner. It will also provide a platform for many smaller arts companies.

The fact that so many of these outfits are queuing up to perform is testimony to Washington’s cultural vitality. The recently-expanded Kennedy Centre is by some measures the busiest performing arts complex. But it still has a growing number of arts groups which are desperate for mid-sized space down- town. Michael Kahn, the theatre company’s artistic director, jokes that, despite Washington’s aversion (厌恶) to keeping secrets, it has made a pretty good job of keeping quiet about its artistic life. The Harman Centre should act as a whistle blower.

Washington still bows the knee to New York and Chicago when it comes to culture. But it has a good claim to be America’s intellectual capital. It has the greatest collection of think-tanks on the planet, and it regularly sucks in a giant share of the country’s best brains. Washington is second only to San Francisco for the proportion of residents twenty-five years and older with a bachelor’s degree or higher.

Washington’s intellectual life has been supercharged during the Bush years, despite the Decider’s aversion to ideas. September 11th, 2001, put questions of global strategy at the center of the national debate. Most of America’s intellectual centers are firmly in the grip of the left-liberal establishment. For all their talk of "diversity" American universities are allergic to a diversity of ideas. Washington is one of the few cities where conservatives regularly do battle with liberals. It is also the center of a fierce debate about the future direction of conservatism.

The danger for Washington is that this intellectual and cultural renaissance will leave the majority of the citizens untouched. The capital remains a city deeply divided between over-educated white itinerants and under- educated black locals. Still, the new Shakespeare theatre is part of job-generating downtown revival. Twenty years ago downtown was a desert of dilapidated(破旧的) buildings and bag people. Today it is bustling with life. If Washington is struggling to fix the world, at least it is making a reasonable job of fixing itself.

According to the text, which of the following statements is correct()

A. sidney Harman hall provides a new stage for Shakespeare Theatre Company

B. michael Kahn is the artistic director of the expanded Kennedy Centre

C. lansburgh Theatre is in the heart of downtown area in Washington

D. many smaller arts groups are desperate for mid-sized space downtown

题型:选择题

某企业上年末资产负债表部分项目的余额如下:货币资金230000元,应收账款42450元,存货132000元,固定资产原价510000元,累计折旧183000元。该企业本年度发生下列经济业务:
(1)购入A材料一批,买价为20000元,增值税额为3400元;购入B材料一批,买价为10000元,增值税额为1700元;购入A、B两种材料共发生运杂费900元,按材料的买价比例分配;材料的货款和运杂费共计36000元均以银行存款支付,材料已验收入库。
(2)对企业行政管理部门使用的固定资产计提折旧600元。
(3)销售产品一批,售价为30000元,增值税税率为17%,货款尚未收到;该批产品的生产成本为22000元,销售产品应交纳的城市维护建设税及教育费附加为500元。

根据上述业务(1),计算A材料的实际采购成本为( )。

A.20300元

B.20600元

C.23400元

D.24000元

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