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问题 单项选择题

1岁小儿，血常规检查结果如下：Hb80g／L，MCV98fl，MCH33pg，MCHC32％。最适宜的治疗是（）

A.输血

B.脾切除

C.口服铁剂

D.口服维生素C

E.肌注维生素B12

答案

参考答案：E

解析：血常规检查MCV↑、MCH↑、MCHC正常，提示为大细胞性贫血，应给予维生素B和（或）叶酸治疗。

完形填空

阅读下面短文，根据汉语或首字母提示以及文章内容，在每条横线上填入一个适当的英语单词，使短文意思完整。

Over time computers have been changed quite a lot. The computer was c_____小题1:______ a technological revolution and the start of articficialintelligence. Alan Turning ____小题2:____ a book about how the computer couldbe made to work as a u   小题3:   machine to solve any difficult mathematicalproblem. From then on, it grew r_____小题4:____ both in size and in brainpower.

By the 1940s it had grown as large as a room. As time ____小题5:____ by, itwas made smaller. In the early 1960s people could share ____小题6:____(知识)with each other through the World Wide Web. ___小题7:____ the 1970s manynew ___小题8:______(应用) have been found and computers become veryimportant in communication, finance and trade. B__小题9:____, it has beenput into___小题10:____(机器人) and used to make mobile phones as well as

help with medical operations.

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多项选择题

天然石材印度红的性能和应用特点包括（　　）。

A．可有效抵抗酸雨的侵蚀

B．耐磨、抗冻，适于铺设室外墙面

C．属于硅质砂岩的变质岩

D．强度高、硬度大、耐火性强

E．弯曲强度不小于8MPa
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