人站在平台上平抛一小球,球离手时的速度为v1,落地时速度为v2,不计空气阻力,如

题型:选择题

问题:

人站在平台上平抛一小球,球离手时的速度为v1,落地时速度为v2,不计空气阻力,如图所示能表示出速度矢量的演变过程的是        ( )

考点:平抛运动
题型:选择题

下列混合溶液中,离子的浓度大小顺序正确的是(  )

A.10mL0.1mol/L氨水与10mL0.1mol/L盐酸混合,c(Cl-)=c(NH4+)>c(OH-)>c(H+

B.10mL0.1mol/LNH4Cl溶液与5mL0.2mol/LNaOH溶液混合,c(Na+)=c(Cl-)>c(OH-)>c(H+

C.10mL0.1mol/L醋酸与5mL0.2mol/LNaOH溶液混合,c(Na+)=c(CH3COO-)>c(OH-)>c(H+

D.10mL0.5mol/LCH3COONa溶液与6mL1mol/L盐酸混合,c(Cl-)>c(Na+)>c(OH-)>c(H+

题型:选择题

—Hello!

—Hello, Betty! _________ is Jill speaking. [ ]

A. I'm

B. She is

C. This is

题型:选择题

第三部分:阅读理解(共20小题;每小题2分;满分40分)

阅读下列短文,从每题所给的四个选项(A、B、C、D)中选出最佳选项。

A

Mr. Brozina is a single father and an elementary school librarian who reads aloud for a living. When his daughter, Kristen, hit fourth grade, he proposed The Streak: to see if they could read together for 100 straight bedtimes without missing once.

When The Streak reached 100, they celebrated with a pancake breakfast, and Kristen whispered, "I think we should try for 1,000 nights."

Mr. Brozina was delighted, but what he was thinking was, a thousand nights?! "I thought, we'll never do it," he recalled. "And then we got to 1,000, and we said, 'How can we stop?' "

For 3,218 nights (and some mornings, if Mr. Brozina was coming home too late to read). The Streak went on. It progressed from picture books to middle-school classics to Harry Potter, Agatha Christie, Dickens and Shakespeare, continuing on, until Kristen's first day of college.

In those nine-plus years, they survived many close calls. When Kristen was still in elementary school, her father went to Washington. "The phone rang at 10:45 at the hotel and it was Kristen," Mr. Brozina recalled. "She said, 'Dad, we forgot The Streak!' Fortunately, I always traveled with several books and we read right then and there."

This spring, Kristen graduated from Rowan' University. She has performed as you'd expect for a product of The Streak, an English major with a 3.94 average. She also won two national writing contests, was an editor of the humor arid literary publications and won the annual English department award.

56. According to the passage, Mr. Brozina and his daughter read together for          .

A. 100 bedtimes                           B. 1000 nights                          C. over nine years                           D. nearly 3000 nights and some mornings

57. In the passage, the underlined phrase in Paragraph 1 probably means _____.

A. the period of time for reading together    B. me children's book                    C. the special night                      C. the school work

58. How has Kristen benefited from reading with her father?

A. She has grown closer to her father.        

B. She has become a school librarian herself. 

C. She has performed well at university.     

D. She has won many reading awards.

59. This passage is about a father who _____.

A. is very strict in his work          B. enjoys reading when travelling        

C. makes his daughter love reading D. has a hard time bringing up his daughter

题型:选择题

(一)
某机电安装工程公司总承包一大型制药厂设备安装工程。合同约定,工程设备和主材由业主采购提供。
管道工程安装时,因业主提供的水泵迟迟不能到货而影响工期,项目部为保证施工进度自行采购部分水泵并进行安装,安装后被监理工程师发现,下令停工。经与业主协商,同意采用项目部购买的水泵。在试压时,发现项目部购买的水泵密封部位泄漏。
地下管网施工中,因设计图样修改,增加了施工内容和工程量,业主仍坚持合同工期不变。为此项目部提出合同变更和索赔的申请。
该工程施工环境不确定因素较多,工期紧、任务重,项目部在施工准备阶段制订了人力资源储备预案,因施工范围扩大超过预期,该预案仍不能满足工程进度需要。
为赶工期,项目部将制药厂合成工段的压缩机安装分包给具备施工资质的施工单位。项目部编制了该工程施工组织设计,并编制压缩机施工方案,向分包单位进行交底,然后由分包单位组织施工。
问题

人力资源储备预案不能满足施工范围扩大的要求,项目部还应采取哪些人力资源管理措施,以保证施工正常进行,如期完成合同工期

题型:选择题

施工升降机高度在90米以下时,其架体的垂直度偏差,最大不应超过架体高度的()。

A.1‰

B.70mm

C.90mm

D.110mm

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