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问题 单项选择题 A1/A2型题

血液中的胆红素最主要来源于（）

A.血红蛋白分解

B.肌红蛋白分解

C.过氧化物酶分解

D.过氧化氢酶分解

E.细胞色素分解

答案

参考答案：A

解析：血红蛋白和肌红蛋白等物质分解可生成胆红素，但就量来说，主要来源于血红蛋白。

句型转换

Ten years ago, Lynn Smith went far away to university. She went to a school that was 3000 miles from her home, (1) so she couldn’t afford(负担) to come home to visit her parents. She had a part-time job and earned enough money to pay for her books and courses. After she graduated, she got a job in South America teaching English. In Brazil, she married Roberto Silva and they had three children. At first, Lynn stayed at home to care for the babies, but later she went back to work. Roberto and Lynn finally could achieve(实现) her dream.

When the Silva family arrived at the airport, they were surprised that no one was there to meet them. (2) Finally Lynn saw a man who looked a little like her father. She called his name and he came over to her. Lynn had changed so much that he almost didn’t know her. Mr Smith wondered if he had the right person. Lynn thought the same thing. (3) Ten years later,  her father didn’t look the way he used to be.

小题1:将(1)处句子改写为同义句. （每空一词）    

So she didn’t ______ enough ______ to come home to see his parents.

小题2:将(2) 处的句子改为并列句。（每空一词）  

Finally Lynn saw a man, _____ _____looked a little like her father.

小题3:将（3）处的英文译成中文。

                                                                       
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问答题

(二)

某城市道路工程，基层采用水泥稳定土，施工中的部分技术指标如下。
(1) 选用初凝时间3h以下的P32.5号水泥。
(2) 水泥稳定土中的中粒土做基层时，水泥剂量不宜超过10%。
(3) 施工最低气温为-5℃。
(4) 基层保湿养生不宜小于3h。
(5) 基层的压实厚度最多不超过30cm。在该道路工程面层施工时，已进入冬期，施工项目经理部为此提出了应对措施。
[问题]

水泥稳定土路基层宜在哪个季节施工
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