测得苹果的果实在一段时间内,CO2的释放量比O2的吸收量大,由此推断果实[ ]

题型:选择题

问题:

测得苹果的果实在一段时间内,CO2的释放量比O2的吸收量大,由此推断果实[ ]

A.有氧呼吸占优势

B.有氧呼吸与无氧呼吸消耗的葡萄糖相等

C.无氧呼吸占优势

D.既进行无氧呼吸又进行有氧呼吸

考点:呼吸作用
题型:选择题

拟南芥P基因的突变体表现为花发育异常。用生长素极性运输抑制剂处理正常拟南芥,也会造成相似的花异常。下列推测错误的是[ ]

A.生长素与花的发育有关

B.生长素极性运输与花的发育有关

C.P基因可能与生长素极性运输有关

D.生长素极性运输抑制剂诱发了P基因突变

题型:选择题

有关胸部疾病MRI的检查论述,错误的是()

A.有心电门控技术可减少心脏搏动造成的伪影

B.MRI对肺组织病变检查效果好可取代X线和CT

C.MRI不用对比剂也可显示心脏及大血管

D.通常取仰卧位用体部线圈采用自旋回波序列

E.MRI对纵隔肿瘤和心脏大血管病变具有很高的诊断价值

题型:选择题

It's such a happy­looking library, painted yellow, decorated with palm­tree stickers and sheltered from the Florida sun by its own roof. About the size of a microwave oven, it's pedestrian­friendly, too, waiting for book lovers next to a sidewalk in Palm Beach Country Estates, along the northern boundary of Palm Beach Gardens.

It's a library built with love.

A year ago, shortly after Janey Henriksen saw a Brian Williams report about the Little Free Library organization, a Wisconsin­based nonprofit that aims to promote literacy and build a sense of community in a neighborhood by making books freely available, she announced to her family of four, “That's what we're going to do for our spring break!”

Son Austin, now a 10th­grader, didn't see the point of building a library that resembles a mailbox. But Janey insisted, and husband Peter unwillingly got to work. The 51­year­old owner of a ship supply company modified a small wooden house that he'd built years earlier for daughter Abbie's toy horses, and made a door of glass.

After adding the library's final touches(装点), the family hung a signboard on the front, instructing users to “take a book, return a book,” and making the Henriksen library, now one of several hundred like it nationwide and among more than 2,500 in the world, the only Little Free Library in Palm Beach County.

They stocked it with 20 or so books they'd already read, a mix of science fiction, reference titles, novels and kids' favorites. “I told them, keep in mind that you might not see it again,” said Janey, a stay­at­home mom.

Since then, the collection keeps replenishing(补充) itself, thanks to ongoing donations from borrowers. The library now gets an average of five visits a day.

The project's best pay­off, says Peter, are the thank­you notes left behind. “We had no idea in the beginning that it would be so popular.”

小题1:In what way is the library “pedestrian­friendly”?

A.It owns a yellow roof.

B.It stands near a sidewalk.

C.It protects book lovers from the sun.

D.It uses palm­tree stickers as decorations.小题2:Janey got the idea to build a library from ________.

A.a visit to Brian Williams

B.a spring break with her family

C.a book sent by one of her neighbors

D.a report on a Wisconsin­based organization小题3:The library was built ________.

A.by a ship supply company

B.on the basis of toy horses

C.like a mailbox

D.with glass小题4:What can we infer from the signboard?

A.It was made by a user of the library.

B.It marked a final touch to the library.

C.It aimed at making the library last long.

D.It indicated the library was a family property.小题5:The passage tells us that the users ________.

A.donate books to the library

B.get paid to collect books for the library

C.receive thank­you notes for using the library

D.visit the library over 5 times on average daily

题型:选择题

与投资中心的投资利润率无关的因素有( )。

A.存货周转率

B.资本周转率

C.成本费用利润率

D.销售成本率

题型:选择题

资料库行销,最后要做到什么行销()

A.一对多

B.一对一

C.多对多

D.多对一

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