如下图所示并联管道a、b,两管的直径相同,沿程阻力系数相同,长度ιb=3ιa,通过的

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问题:

如下图所示并联管道a、b,两管的直径相同,沿程阻力系数相同,长度ιb=3ιa,通过的流量关系为()

A.

B.

C.

D.

考点:注册公用设备工程师暖通空调专业知识勘察设计注册公用设备工程师暖通空调与动力专业基础
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声音在空气中的传播速度______在钢材中的传播速度.(填大于、小于、等于)

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污水处理采用的高分子絮凝剂是()。

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My sister and I were flying from our home in Kansas to a summer camp in Minnesota. Our plane had a two-hour       at the airport in Omaha, where I saw a toy airplane that I really       . I had $10 and I had no idea what I needed to       at camp, but I spent $8 on the airplane anyway.
When we reached the camp, I discovered that there were no showers!       , we bathed in a lake every night. I needed to buy       soap. Because the regular soap I brought had chemicals that could        the fish. The special soap cost $4 at the camp store. After buying the plane, I had $2 left, so I couldn’t buy the soap.
After a few days, I was a       . Sally, our camp teacher, asked me if I needed some soap. When I       her that I had spent my soap money on a toy airplane, she laughed and said, “You need to budget.” She then explained that a budget was a(n)       for spending money to help make sure you save enough for things you       — like soap — before you buy fun things — like       . Sally gave me her extra soap, which I       took.
When I returned home from       , I decided to make my       budget. Every week I spent time writing down everything I bought, and some weeks, I would have more in my “Money In” account        I did odd jobs (零活) around the house.
Budgeting was       , especially when my friends bought soda at the store after school and I couldn’t because I had spent all my “Want to Spend” money. But I       with it, and by the next summer, I had       enough money to buy a Paula Pilot doll at Omaha Airport, as well as       at the camp store to       Sally!
小题1:
A.restB.tripC.flightD.stop
小题2:
A.madeB.wantedC.leftD.remembered
小题3:
A.learnB.bringC.buyD.do
小题4:
A.BesidesB.HoweverC.InsteadD.Anyhow
小题5:
A.specialB.commonC.smallD.expensive
小题6:
A.catchB.raiseC.hurtD.control
小题7:
A.heroB.messC.starD.failure
小题8:
A.warnedB.toldC.suggestedD.reminded
小题9:
A.planB.ideaC.exampleD.promise
小题10:
A.loseB.gatherC.needD.hate
小题11:
A.chemicalsB.clothesC.billsD.toys
小题12:
A.fortunatelyB.cautiouslyC.unhappilyD.gratefully
小题13:
A.schoolB.airportC.campD.hospital
小题14:
A.dailyB.weeklyC.monthlyD.yearly
小题15:
A.soB.andC.becauseD.until
小题16:
A.hardB.boringC.safeD.fresh
小题17:
A.dealtB.beganC.agreedD.stuck
小题18:
A.receivedB.savedC.earnedD.borrowed
小题19:
A.fishB.waterC.soapD.soda
小题20:
A.apologize forB.call onC.care forD.pay back
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为了保证“××市地形要素数据库”项目顺利完成,保证其成果的可靠、真实,某测绘单位承担了该项目的质量控制工作。主要工作内容包括:根据相关标准和规定制定数据质量检查的标准和规定、开发检查验收软件、数据检查验收试验、数据检查验收。
问题:

试述质量检查的主要方法。

题型:单项选择题

格列齐特为()

A.长效胰岛素制剂

B.双胍类口服降血糖药

C.磺酰脲类口服降血糖药

D.α糖苷酶抑制剂

E.正规胰岛素

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