对血气分析标本的要求，下列叙述错误的是（） A.桡动脉是采集动

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问题单项选择题

对血气分析标本的要求，下列叙述错误的是（）

A.桡动脉是采集动脉血的理想部位，也可用动脉化毛细血管血

B.标本要求采用肝素抗凝的全血

C.若标本长时间放置，可因血细胞代谢产生酸性代谢产物，使pH值下降

D.玻璃和塑料注射器都可用于血气分析时的标本采集

E.为降低糖酵解产物对血气分析结果的影响，可使用氟化物等抑制或阻断糖原分解的物质

答案

参考答案：E

阅读理解

Read and answer. Jack为什么回家晚了？读一读，回答下列问题。

Jack is a naughty (顽皮的) boy. He walks to school every day. The school is near his house. He comes

home on time (准时). But today he is late. His mother asks him, "Why are you late (晚了) today ?"

"I am in the teacher's office." "Why do you go to the teacher's office ?"

"Because my teacher asks us a question in class, and nobody (没有人) can answer it, but I can."

"It's good to answer the teacher's questions." his mother says.

"But the question is who makes the teacher's desk dirty ?"

1. Is Jack a naughty boy ?

2. How does Jack go to school ?

3. Why is Jack late today ?

4. Who makes the teacher's desk dirty ?

填空题

现代人文地理学的主要特征之一就是新的研究方法的广泛使用包括60年代的（）、70年代的（）法以及今天广泛使用的遥感技术、地理信息系统、全球定位系统方法。