决定人有耳垂的基因B对决定无耳垂的基因b为显性,小明同学有耳垂,下列哪种说法正确

题型:选择题

问题:

决定人有耳垂的基因B对决定无耳垂的基因b为显性,小明同学有耳垂,下列哪种说法正确?(  )

A.小明的基因一定是BB型

B.小明的父母一定都是有耳垂的

C.小明的父母至少有一个是有耳垂的

D.小明的基因型一定是Bb型

考点:基因的显性和隐性
题型:选择题

不是茶剂质量检验的内容的是()

A.水分

B.溶化性

C.装量差异

D.微生物限度

E.醇含量

题型:选择题

删除查询将删除________。

题型:选择题

Many of us like cooking but never have much time for it. Helen Fry’s new book Quick Cooking has been specially written for busy people. It has over 1,000 recipes, from the famous Spanish gazpacho to Swedish smorgasbord. The book is well written and the photographs and drawings are clear. (They are like those in the excellent little Quick Dressmaking and Quick Gardening.) The book has a strong plastic cover. It is easy to find your way around it too. And busy people, notice this! Mrs. Fry tells you how much time you need in order to get each dish ready.

Quick Cooking has 4 parts, one for each season. This helps you to use fresh fruit and vegetables when they are cheaper—and, of course, better. There are a lot of exciting ideas from foreign countries, and most of the recipes are easy to follow. You take something simple like a chicken or some cheese, and make and unusual dish out of it. For example, there are no fewer than 40 recipes for eggs! Mrs. Fry does not plan complete meals for the “quick book”. The beginners will have to find out a lot of things for himself—or herself. But this ought not to be difficult with such a good book. I wanted to try many of the recipes as soon as I read them. For people with little spare time Helen Fry’s Quick Cooking is excellent value. 

1. Helen Fry’s book is called Quick Cooking because ___.

A. you can cook all the dishes in it quickly

B. there is over 1,000 recipes in it

C. it is written for people who don’t have much time

D. it tells you how to cook all kinds of food quickly

2. Busy people should notice that _____.

A. all the recipes in the book are easy to follow

B. there are clear photographs and drawings in the book

C. the book has a strong cover

D. they are told how long each dish takes to cook

3. This passage is most probably ____.

A. a book review             B. a notice

C. a letter to an editor         D. an introduction on cooking

4. We can infer from the passage that _____.

A. Helen Fry is good at writing books quickly

B. complete meals are planned only for beginners

C. there are quite a few “quick books” for busy people

D. beginners are advised to start making meals out of the cheapest materials

题型:选择题

2002年4月5日,陕西某县刮大风。刘某因急事骑自行车经过该县自建公路,突然大风将路旁的护路树刮断,断树砸中刘某头部,当即昏迷倒地。后抢救无效死亡。经查倒下的护路树是因严重虫蛀中空而被风刮倒,该公路两侧的护路树虫蛀率达到74%。刘某家属向该县公路管理段要求赔偿损失,公路管理段答称该段已经将采伐更新虫蛀护路树的任务承包给某村,某村长期不开始采伐,造成损失,应由某村负责。关于本案_________。

A.刘某应当向某村要求赔偿损失

B.刘某应当向县公路段要求赔偿损失

C.县公路段应当承担责任后,向某村追偿

D.县公路段无过错,不应当承担责任

题型:选择题

()一般有独著、合著、编著、主编、编写等类型。

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