已知两圆相交于两点(1,3)和(m,1),且两圆的圆心都在直线x-y+c2=0上

题型:填空题

问题:

已知两圆相交于两点(1,3)和(m,1),且两圆的圆心都在直线x-y+
c
2
=0
上,则m+c的值是______.
考点:直线的方程
题型:填空题

连接油泵和千斤顶的耐油橡胶管必须耐高压,工作压力不得低于油泵的额定油压或实际工作的最大油压。( )

题型:填空题

为了给病人补充热能,输液中应选用

A.各种代血浆

B.0.9%氯化钠溶液

C.5%碳酸氢钠溶液

D.5%~10%葡萄糖溶液

E.50%葡萄糖注射液

题型:填空题

某业主与W工程公司依据FIDIC条款格式,订立了某工程的施工合同。合同规定:采用单价合同,因设计变更而发生的工程量变化,按实调整;同时视具体的变动情况,业主与承包商商谈变更后的单价。合同工期为18天,工期每提前1天奖励2000元,每拖后1天罚款4000元。W工程公司在开工以前及时提交了施工网络进度计划如图4—1所示,并得到业主的批准。

工程施工过程中发生如下几项事件。

事件1:因工程师提供的数据有误,导致在基坑土方开挖时,将地下电缆挖断,造成施工现场停电,使工作B和工作C的工效降低,作业时间分别拖延1天和2天;多用人工18个和11个工日(假设人工工日单价为25元/工日,应由甲方补偿的人工窝工和降效费为12元/工日);

工作B自有施工机械每天折旧费为615元,工作C自有施工机械每天折旧费为310元。

事件2:工作K中,原施工组织设计采用50t轮胎式起重机(自有机械,设备折旧费为796元/天),但开工前该设备恰好出现故障需要大修,且考虑到现场的实际情况,W公司外租一台120t履带式起重机,租赁费为10000元/天,工期缩短1天。

事件3:因施工中意外发现一条地下管线,且在业主提供的施工图纸中没有标明。经业主同意,工作H的工程量增加了20m3,该工作维持综合单价为65元/m3不变;工作G原有工程量为200m3,现工程量减少20m3,单价由78元/m3调整为88元/m3。相应的工期没有变化。

事件4:工作I、工作J为钢筋混凝土项目,因在冬期施工,按照有关规范的规定,在混凝土浇筑的过程中,采取了冬期施工措施,使这两项工作的作业时间均延长了2天,使用防冻剂等措施费分别为2000元、850元。

其余各项工作的实际作业时间和费用均与原计划相符。

问题

上述哪些事件承包商可以提出工期和费用补偿要求哪些事件承包商不可以提出工期和费用补偿要求简述其理由。

题型:填空题

Many English learners have difficulty deciding what kind of English accent they want to have. A US accent, perhaps modeled on the way a Hollywood star speaks? Or maybe you want to imitate(模仿) the British accent of a BBC news reader?

Young British people find the US accent attractive while young US people like a British accent. Especially when the person speaking is of the opposite sex(异性)! Let’s listen to what they have to say.

Stephen Yang, 17, from London, UK

A US accent is cute, especially when a girl speaks it. Whether it’s Jessia Alba speaking or the girl- next-door, the way US girls speak has a sweet tingle that is really sassy(时髦). A girl from Texas recently moved into our neighborhood. Her Texan twang(鼻音) had all the boys here on their knees within seconds of meeting her

To me, accents reflect the attitudes, characteristics and lifestyles of the people.

Jennifer Sun, 16, from New Jersey, US

From watching English actors like Daniel Radcliffe, my friends and I have developed a soft spot for British men.Some are attracted to the qualities of English males, while others admire their sense of style.

Everyone, however, agrees that the most appealing aspect of an English man is his accent. For example, many American girls watch Harry Potter movies over and over again just to listen to the actors speak.

The English accent seems almost like art.

小题1:In Stephen Yang’s opinion, accents just show__________.

A.the beauty of the language

B.how the language is spoken

C.the cultural differences of the speakers

D.the meeting of the day小题2:The underlined sentence in paragraph means that __________.

A.All the boys broke their knees

B.All the boys fell to the ground

C.All the boys liked her accent very much

D.All the boys imitated(模仿)her accent小题3:Many American girls watch Harry Porter again and again in order to __________.

A.learn the acting skills of the these stars

B.learn the magic performed by Harry Potter

C.imitate the actors’ accents

D.know more about British English小题4:What is probably the best title for this passage?

A.British English and American English

B.British Accent or American Accent

C.American English Accent is Most Accepted

D.The difference between British Accent and American Accent.

题型:填空题

尤金·奥尼尔的表现主义代表作有()。

A.《天边外》

B.《上帝的女儿都有翅膀》

C.《榆树下的欲望》

D.《琼斯皇》

E.《毛猿》

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