对红细胞制品进行洗涤时，一般要求将欲洗涤的红细胞在室温先放置（）。 A.20～50分

请利用图中所示的器材，测出小金属块的密度。补充完成实验步骤（用字母表示测出的物理量，水的密度用ρ_水表示）及金属块的密度表达式。

实验步骤：

(1)让小容器漂浮在水槽中的水面上，量出这时水面到槽上边沿的距离h₁。

(2)量出                                     时水面到槽上边沿的距离h₂。

(3)将金属块从小容器中取出用细线系住没入槽内水中，量出这时水面到槽上边沿的距离h₃。

金属块密度的表达式：ρ_金属 =            。

Italian Lakes and Greek Islands(12Days)

Prices starting from $1，999

Your tour begins in Milan, Italy, and moves on to the pretty Italian Lake District and the attractive resort(胜地）of Stresa, your home for two nights.  Collette Vacations has carefully chosen the Costa Victoria as your home away from home for your 7-night journey along the waterways of the Mediterranean.  The cruise ship is filled with the warmth and culture of Italy and is richly designed with entertainment(娱乐）areas and very good living conditions.  It will take you to the places of your dreams. 

You'll spend 4 days touring Greek cities you've always heard about. In Katakolon, you will have the only unguided tour to nearby Olympia on the whole journey.  Then with a local guide you will visit the Greek islands of Santorini, which is often related to the story of the lost city of Atlantis, and Mykonos, a wonderful island with beautiful beaches. 

Your journey ends in Verona, home of the love story Romeo and Juliet, with a fun-filled farewell dinner-a perfect ending to a pleasant journey. 

12Day, 25Meals:10Breakfasts, 6 Lunches, 9Dinners

Day 1 Overnight flight to Italy

Day 2-3 Regina Palace, stresa, Italy

Day 4-10 Costa Victoria(Costa cruises)

Day 11 Hotel Leopardi, Verona, Italy

Day 12 Leave for home

Please Note:

小题1:How is the journey planned?

A．It starts and ends in Italy.

B．It starts and ends in Greece.

C．It starts in Italy and ends in Greece.

D．It starts in Greece and ends in Italy.小题2:What can be inferred from the travel plan?

A．The price may get lower than those in the plan.

B．The prices include three meals a day.

C．The price is the highest in summer.

D．The prices include entertainment service.小题3:What does the underlined part “the Costa Victoria” most probably refer to?

A．A　famous hotel.

B．A beautiful resort.

C．A comfortable ship.

D．A long-distance bus.小题4:Tourists will travel on their own in    .

A．Stresa

B．Olympia

C．Mykonos

D．Verona

后 * * 损伤（）。

A．多见于骑跨伤

B．多见于枪弹伤

C．多见于骨盆骨折

D．多见于儿科手术

E．多见于盆腔或腹膜后手术

清点现金须按规定包捆扎把，纸币每（）把为一捆。

A、100、10

B、50、10

C、100、12

D、50、12

在未来，“互联网+医疗”深度融合后，用户可以选择一个家庭医生永久绑定，这些医生提供线上坐诊，用户足不出户就可进行远程看病，药物随后由物流送达。这体现了（）。

A、生产为消费创造动力

B、生产决定消费的对象

C、生产决定消费的质量和水平

D、人们的消费是由主观愿望决定的