1.单选题- (共14题)
| A．大花生果实的平均长度大于小花生果实的平均长度 |
| B．大花生中最小的种子也比小花生中最大的种子大 |
| C．决定花生大小品种的主要因素是土壤的肥沃程度 |
| D．大花生品种更适应环境，属于有利变异 |
| A．不同的基因含有控制不同性状的遗传信息 |
| B．染色体数目的稳定对生物的遗传具有重要意义 |
| C．变异的存在使生物适应不断变化的环境成为可能 |
| D．生物的遗传和变异导致了生物的进化 |
A. 后代都会患遗传病 B. 违反我国的伦理道德规定
C. 后代长相都很难看 D. 后代患遗传病的机会增加
| A．AA, aa | B．Aa, aa | C．AA, Aa, aa | D．aa |
| A．一半来自父方、一半来自母方 |
| B．一半以上来自父方，一半以下来自母方 |
| C．一半以下来自父方、一半以上来自母方 |
| D．与父亲相似的人，来自父方多，与母亲相似的人，来自母方多 |
| A．能够使生物更好的适应不断变化的环境 |
| B．所有的变异对生物的生存都是有利的 |
| C．变异会产生新的生物类型，使生物不断进化 |
| D．人们可以利用对人类有益的变异选育新品种 |
| A．甘蓝具有遗传性，而不具有变异性 |
| B．仅由环境条件引起的变异是不遗传的 |
| C．环境改变使生物产生定向的变异 |
| D．甘蓝的形态发生变化不属于变异 |
2.选择题- (共1题)
For most people, the word "fashion" means "clothes". But people may ask the question, "What clothes are in fashion?" And they use the word "fashionable" in the same way.
"She was wearing a fashionable coat. His shirt was really a fashionable colour. "
But of course there are fashions in many things, not only in clothes. There are fashions in holidays, in restaurants, in films and books. There are even fashions in school subjects, job…… and in languages.
Fashions change as time goes. If you look at pictures of people or things from the past, you will see that fashions have always changed. An English house of 1750 was different from one of 1650. A fashionable man in 1780 looked very different from his grandson in 1860.
Today fashions change very quickly. Some of this is natural. We hear about things much more quickly than in the past. Newspapers, radios, telephones and television send information from one country to another in a few hours.
New fashions mean that people will buy new things, so you see there is money in fashion.
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【1】题量占比
单选题:(14道)
选择题:(1道)
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【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：6
7星难题：0
8星难题：5
9星难题：2