题目

图为某家族有无耳垂性状的遗传图解，有耳垂和无耳垂是一对相对性状（由一对基因A、a控制。）有据图分析错误的是（） A . 有耳垂为显性性状 B . Ⅱ8的基因组成一定是Aa C . Ⅲ10的基因组成无法确定 D . Ⅱ7和Ⅱ8夫妇再生一个有耳垂子女的机会是3/4 答案：D阅读七选五.Everyone can benefit a lot from reading books. The following is about the various benefits of reading books.1. Whenever you read something, you learn information that you otherwise wouldn't have known. It can be a fact about history or a theory you didn't know existed. If you want to learn new words, reading books is a great way to enlarge your vocabulary.2. Similar to solving puzzles, reading books allows your mind to practice its processing skills. Going without books for too long will turn your mind into a whirl (混乱)．One of the primary benefits of reading books is its ability to develop your critical thinking skills. _3._ Wherever you are faced with a similar problem in real life, your mind is able to put its mystery?solving skills to a test.One of the great benefits of reading books is that the information in it can be accessed over and over again. For example, reading a cookbook allows you the luxury of reviewing the procedures whenever you need to. 4. Don't even think about writing the information down because you may lose the paper you wrote down on sooner or later.These are just some of the wonderful benefits of reading books. 5._ If you can't even go outside, you can download free e?books online and read them on your computer. That way, you can see how advantageous reading can be for yourself.A．Reading books can put you in a confident mood.B．You can improve your memory by reading.C．Reading books provides you with new knowledge.D．Following a recipe from a cooking show will be difficult.E．Reading mystery novels, for example, sharpens your mind.F．Reading keeps your mind in good condition.G．Why don't you drop into the bookstore or library and pick a book up?