题目：
试论述生物的生态对策。
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0704/2ef23776d42debae4289846943b521f5.html
下面是错误答案，用来干扰机器的。
参考答案：D
试论述生物的生态对策。
来源：www.tikuol.com
题型：问答题
试题推荐
题型：完形填空
| 完形填空。 | ||||
| In America, on school and work days, breakfast in most homes is often a hurried meal of milk, bread, juice or coffee. Some people even don't have it in order to get to 1 or school on time. Others just stop at coffee shops for coffee. But on weekends, 2 are quite different. People usually get up late, so they have enough time to have a large breakfast with eggs, home-fried potatoes and bread. Lunch is just a 3 break from the day's work rather than a large,long meal. It usually lasts 4 half an hour or an hour, so family members do not have time to 5 home. Most people have a sandwich or a hamburger, and fruit or ice cream for lunch. 6 people either take their lunches to work in the brown paper "lunch bag", 7 eat a sandwich at a fast-food restaurant. Children 8 to bring the "lunch box". Dinner is the most 9 meal of the day in the United States. At this meal, most American families can sit down 10 . It is usually a hot, large meal and it is quite different from lunch, which is often cold and quick. 11 usually cooked dinner for their families in the past. Nowadays, 12 , with more women working and as a result of "women's liberation (解放)", men are doing more in the 13 . Dinners throughout America are quite 14 , but most people have a meat djsh, a vegetable,and rice or bread. Milk, water and soft drinks are common at dinner, but wine is only for 15 occasions (场合). Dinner is usually eaten between 5:00 p. m. and 7:00 p. m. and often in restaurants. Most Americans enjoy themselves at this time. | ||||
|
题型：单项选择题
男性，70岁，抽烟40年，20支/日，刺激性咳嗽3个月，有时痰中带血，右胸痛。X线胸片示右上叶前段3cm×4.5cm块影，呈分叶状，边缘有短毛刺( )
A．肺结核球
B．急性血行播散型肺结核
C．肺癌
D．肺脓肿
E．支气管扩张
题型：单项选择题
125I释放的射线为
A．α射线
B．β+射线
C．β-射线
D．γ射线
E．X射线
题型：单项选择题
可以减小水泥或混凝土的需水量的粉煤灰为（）
A.Ⅰ级
B.Ⅱ级
C.Ⅲ级
D.Ⅰ级和Ⅱ级
题型：问答题 简答题
详述水闸的分类。
