题干

下列有关孟德尔的“假说﹣演绎法”的叙述中不正确的是(  )

A:孟德尔所作假说的核心内容是“受精时,雌雄配子随机结合”

B:“测交实验”是对推理过程及结果进行的检验

C:孟德尔成功的原因之一是应用统计学方法对实验结果进行分析

D:“F1能产生数量相等的两种配子”属于推理内容

上一题 下一题 0.0难度 选择题 更新时间:2014-09-19 04:05:17

答案(点此获取答案解析)

A

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    For many people, a special sale is just too attractive to walk away from. ____ But with sales items, how can you be sure you're really getting a good deal? If you understand some sales tricks, you will be able to make smart choices.

    Some tricks have been used by shopkeepers for ages. ____ For example, if an item is US$11.99 instead of US$12.00, you'll feel like you're spending less money.

    Sellers sometimes reduce items by a certain amount. ____ That means that even with the discount, you may still pay more than the original price.

    Shopkeepers clearly understand what makes you want to buy their products. But with a little preparation, you can avoid being cheated.

Tips for shoppers

*Always compare prices before buying anything.

*____ The more focused you are, the easier it is to make wise decisions.

*Don't shop when you are hungry. Studies show that you'll usually buy more than you originally planned.

*____ First ask yourself: Do I have the money to buy it? Will I use it? If not, walk away, but if so, go for it! That way you'll still feel good after you take your item home.

A.Know what you're looking for.

B.Watch for“Buy one, get one free”sales.

C.And that makes shop owners very happy!

D.One of the oldest is to make prices end in 99.

E.Don't buy something just because it's on sale.

F.Check for sales ads in the newspaper or online.

G.But before the sale begins, sellers might mark the prices higher.