[单项选择]Surveys show that consumer spending on ______ junk food increases during economic recessions. A. frequently B. approximately C. mistakenly D. gratefully
第6题: [单项选择]Ⅱ度咯血失血量为有效循环量的（） A. 5% B. 5%～10% C. 10% D. 15% E. 20% 参考答案:B
第7题: [单项选择]高血氨症不能应用的药物是（） A. 谷氨酸钠 B. 葡萄糖酸钙 C. 乳酸钠 D. 谷氨酸钾 E. 碳酸氢钠 参考答案:D 答案解析:榆注库存血引起的高血氨症往往同时合并有高血钾的可能，故不能应用谷氨酸钾，而应用谷氨酸钠，故正确答案是D。高血氨伴有高血钾时，应用葡萄糖酸钙对钾有拮抗作用；乳酸钠和碳酸氢钠则可促使血浆中的钾转移到红细胞
第8题: [多项选择]环境污染与破坏事故的分级有（）。 A. 一般环境污染与破坏事故 B. 特大环境污染与破坏事故 C. 重大环境污染与破坏事故 D. 较大环境污染与破坏事故 参考答案:A, B, C, D
参考答案:topic
Personally, I would like to choose study independently.
reason 1
The first reason is that I prefer to think and solve problems by myself. It will make me understand the materials better without disturbance from others while I’m studying and solving problems. Besides, I feel happy no matter when I conquer difficulties by myself.
reason 2
The second reason is that, studying independently is the best way to concentrate on my weaker areas and this might not be discussed within group studies. I’d make a studying plan for myself: thus, I don’t need to waste my time on the material that I already get familiar with, and I can make full preparation for my test.
conclusion
Because of these reasons above, I prefer to study independently.
第25题: [单项选择]对于众多个人用户来说，接入因特网最经济、简单、采用最多的方式是 A. 专线连接 B. 局域网连接 C. 无线连接 D. 电话拨号 参考答案:D 答案解析:[解析] 因特网的接入有4种：专线连接、局域网连接、大线连接和电话拨号连接，其中电话拨号连接对众多个人用户和小单位来说，是采用最多的一种接入方式，因为它相对比较便宜、简单。
