女性红细胞计数参考范围是（） A.（4.09～5.74）×1012/L B.（3.6_爱下问搜题

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问题单项选择题

女性红细胞计数参考范围是（）

A.（4.09～5.74）×10¹²/L

B.（3.68～5.74）×10¹²/L

C.（3.5～7.0）×10¹²/L

D.（6.0～7.0）×10¹²/L

E.（4.0～4.5）×10¹²/L

答案

参考答案：B

解析：

本题考查红细胞计数的参考范围。各种人群红细胞计数的参考范围：男性：（4.09～5.74）×10¹²/L；女性：（3.68～5.74）×10¹²/L；儿童：（4.0～4.5）×10¹²/L；新生儿：（6.0～7.0）×10¹²/L。

完形填空

Mickey was a cheerful boy. He didn’t 36 whatever people said to him. He never 37
anyone. Even our teachers liked his 38 . I always wondered why he never got 39 . I found the secret in his bedroom．，
When I first came to Mickey’s house, I was 40 to the wall of his bedroom．The huge wall was a unique collage (拼贴画) of thousands of 41 and shapes! “Some people at school think I never think 42 of anyone.”Mickey started to 43 to me, “and that nothing at all bothers me, but that’s not 44 . I used to get angry easily. But years ago, 45 the help of my parents．I started a small collage．I could 46 any kind of material and color for it．On every little piece I stuck I 47 some bad thoughts.”
I looked 48 atthe wall. In each one of the small pieces I could read，in tiny 49 , “fool”, “idiot”, “pain”,“ 50 ”, and a thousand other negative thing.
“Now I like the collage so much that, each time someone makes me angry, I couldn’t be 51 . They’ve given me a new piece for my work of art.”
I never 52 how an ordinary classmate had shown me the secret of changing the 53 times into a chance to smile．On that very day, I began my own 54 . I recommended it to my friends and we all became more 55 ．

单项选择题

阀门的牌号是ZQ61Y—250，Dg125这种阀门叫做（）

A.电动截止阀

B.单向止加阀

C.弹簧式安全阀

D.电动高压阀