缺铁性贫血未治疗前,外周血的主要特点是() A.红细胞计数下降最明显 B.红细胞

题型:单项选择题 A1型题

问题:

缺铁性贫血未治疗前,外周血的主要特点是()

A.红细胞计数下降最明显

B.红细胞形态增大

C.网织红细胞升高

D.血红蛋白下降最明显

E.血小板下降最明显

考点:乡镇中医执业助理医师内科学内科学题库
题型:单项选择题 A1型题

As Philadelphia grew from a small town into a city in the first half of the eighteenth century, it became an increasingly important marketing center for a vast agricultural hinterland. Market days (1) the crowded city even more crowded, as farmers from within a (2) of 24 or more kilometers brought their sheep, vegetables, cider and other products for direct sale to the (3) . The High Street Market was continuously (4) throughout the period until 1736, (5) it (6) from Front Street to Third. By 1745 New Market was opened on Second Street. The next year the Callow Hill Market began (7) .

Along with market days, the (8) of twice-yearly fairs persisted in Philadelphia (9) after similar trading days had been discontinued in other colonial cities. The (10) provided a means of bringing handmade goods from (11) places to would-be buyers in the city. Linens and stockings from Germantown, (12) , were popular items.

Auctions were another popular (13) of trade. Because of the competition, retail (14) opposed these as well as the fairs. (15) governmental attempts to eradicate fairs and auctions were less than successful, the ordinary (16) of economic development was on the merchants’side, as increasing business specialization became the (17) of the day. Export merchants became differentiated from their importing counterparts, and specialty shops began to appear (18) general stores selling a variety of goods.

One of the reasons Philadelphia’s merchants prospered was because the surrounding area was undergoing tremendous economic and demographic growth. They did their business, (19) , in the capital city of the province, (20) to not only the governor and his circle, but citizens from all over the colony.

3()

A.townspeople

B.farmers

C.merchants

D.governors

题型:单项选择题 A1型题

一个梯形的面积是0.81m2,高是0.9m,这个梯形上底与下底的和是______m.

题型:单项选择题 A1型题

(二)

[背景资料]

某写字楼工程,地下1层,地上15层,框架一剪力墙结构。首层中厅高12m,施工单位的项目部编制的模板支架施工方案是满堂扣件式钢管脚手架,方案由项目部技术负责人审批后实施。施工中,某工人在中厅高空搭设脚手架时随手将扳手放在脚手架上,脚手架受振动后扳手从上面滑落,顺着楼板预留洞口(平面尺寸0.25m×0.50m)砸到在地下室施工的王姓工人头部。由于王姓工人认为在室内的楼板下作业没有危险,故没有戴安全帽,被砸成重伤。

扳手放在脚手架上是否正确说明理由。

题型:单项选择题 A1型题

一电子以0.99c的速率运动。问:

(1)电子的总能量是多少?

(2)电子的经典力学的动能与相对论动能之比是多少?(电子静止质量m0=9.1×10-31 kg)

题型:单项选择题 A1型题

心房颤动时,心电图鉴别室性早搏与心室内差异传导,下列哪项最有帮助()

A.异常QRS波群前长间隙

B.以上都不是

C.起始向量

D.异常QRS波群呈右束支阻滞图形

E.室性融合波

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