为使离窗最远的课桌面上能获得较好的光线,可采取的措施()。 A.玻地面积比不应小于1

题型:多项选择题

问题:

为使离窗最远的课桌面上能获得较好的光线,可采取的措施()。

A.玻地面积比不应小于1:6

B.教师对面的建筑物到教室的距离应不小于该建筑物高的2倍

C.入射角不小于10°

D.最小开角不小于4-5°

E.窗间墙应大于窗宽的1/2

考点:学校卫生与儿少卫生(医学高级)学校建筑和设备卫生学校建筑和设备卫生题库
题型:多项选择题
The bullet (子弹头) train D106 from Changsha to Shanghai has a short stop in Quzhou for only one minute.
Named  21  the letter D, the new trains run at speeds of 200 to 250 kilometers one hour. This is much 22  than Z-type and T-type trains. For example, it  23  take people 12 hours to travel from Shanghai to Beijing. But now it only  24  10. The most interesting part of the bullet trains is the revolving (旋转的) seats. People can adjust (调整) their seats as they like, so that  it  is   25  for you to talk with others around you face to face. The new trains run   26  big cities. They   27 the long trips much faster and more comfortable.
However, many passengers still won’t choose the bullet trains   28  some reasons. The ticket
 29  of the bullet trains are much higher. For example, a hard seat ticket from Beijing to Jinan is only 90 yuan for T-type trains. But on the bullet trains all the seats are   30 . And they cost 153 to 184 yuan. On the other hand, the bullet trains don’t stop at small stations.
小题1:
A.withB.beginC.atD.after
小题2:
A.fastB.fasterC.quicklyD.slower
小题3:
A.wouldB.willC.used toD.was used to
小题4:
A.costB.takesC.needD.spends
小题5:
A.difficultB.hardC.easilyD.easy
小题6:
A.betweenB.amongC.alongD.around
小题7:
A.getB.letC.makeD.allow
小题8:
A.becauseB.forC.sinceD.with
小题9:
A.pricesB.speedsC.costsD.seats
小题10:
A.hardB.bigC.expensiveD.soft
题型:多项选择题

E–cadherin主要介导癌细胞与()黏附。

A.癌细胞

B.白细胞

C.内皮细胞

D.血小板

E.纤维细胞

题型:多项选择题

下列属于从声源上降低噪声的方法有()。

A.在工程设计中改进生产工艺和加工操作方法,降低工艺噪声

B.在工程设计和设备选型时尽量采用符合要求的低噪声设备

C.对声源采用隔振、减振降噪或消声降噪措施

D.在生产管理和工程质量控制中保持设备良好运转状态,不增加不正常的运行噪声

题型:多项选择题

于1980年由MRI发布;原型枪则在1981年完成;而最终定型则是在以色列军事工业公司(IMI)。()

A、沙漠之鹰

B、毛瑟1917手枪

C、德国绍尔袖珍手枪

D、南部十四年式手枪

题型:多项选择题

背景


某桥基础为6根φ2.0m的桩基,桩长35m,桩顶设置承台。地质条件如下:原地面往下依次为2m的覆盖层和含15%砂砾石的土,施工水位比桩顶高1.5m,施工单位拟选用正循环回转钻机,钢护筒结构,采用导管法灌注水下混凝土。
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问题

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在成孔过程中应注意哪些方面

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