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问题 单项选择题

急性上消化道大出血属于下列哪种类型的贫血

A．小细胞低色素性贫血
B．大细胞低色素性贫血
C．小细胞正色素性贫血
D．大细胞正色素性贫血
E．正细胞正色素性贫血

答案

参考答案：E

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基础训练篇（12）

We all know that computers have played and (1)__________ play a very important part (2)___________ various fields.

In personal lives, computers can do lots of work. It can carry (3)___________ people’s instructions.  In agriculture, computers are used (4)_____________ control the (5)__________(grow) conditions of vegetables and other plants. In transportation(交通运输), computers can work out the best distance (6)__________ trains and operate the trains instead (7)____________ human beings. In the fields of education, health and scientific research, computers are important, (8)___________. People use them to store information (9)______________ records.

Because of the computers, life is easier and (10)________ convenient for people.
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