若卷舌基因用“R”表示，不卷舌基因用“r”表示．那你卷舌性状的基因组成是（ ） 发布时间：2017-05-28 11:36 │ 来源：www.tikuol.com 题型：选择题 问题： 若卷舌基因用“R”表示，不卷舌基因用“r”表示．那你卷舌性状的基因组成是（ ）A．RRB．RrC．RR或RrD．rr
题型：选择题 完形填空。 Have you ever complained (抱怨) why life is so tiring? Does the sky sometimes 1 dark to you? Are your lessons sometimes not successful? Well, friends, cheer up and 2 all the time. If you see the world with your warm heart, you will find the whole world smiling to you. On a sunny morning, you plan to have a walk to relax yourself. Just before you go out, it 3 starts torain. Maybe you would feel very sad and start to complain about the weather. But dear friends, why 4 sit down and listen to the free concert that the nature brings you? And with the timely rain, crops (庄稼) in the fields will grow better and farmers will have a good harvest (收成). 5 everyone wants to succeed in what he tries to do, life isn't a bed of roses. It's very common to meet difficulties on the way to success. 6 difficulty isn't terrible. The real terrible thing is that we are afraid of it. Difficulty is 7 a spring (弹簧). If you are 8 , it will be strong. So when you meet difficulties, don't give up.Instead, you should face them with a smile. Attitude 8 everything. With an optimistic (乐观的) attitude, life is easy and 9 . If you want to be happy, try to remember these five easy rules. Free your heart from hate; Free your mind from worries; Live an easylife; Give more; Expect less. The quickest way to receive happiness is to smile, the fastest way to lose it is tocomplain. ( )1. A. seem ( )2. A. cry ( )3. A. suddenly ( )4. A. don't ( )5. A. But ( )6. A. In fact ( )7. A. unlike ( )8. A. powerful ( )9. A. decides ( )10. A. please B. seems B. smile B. finally B. not B. For B. From early onB. likes B. weak B. deciding B. pleased C. seemed C. complain C. hardly C. didn't C. Although C. For example C. like C. confident C. to decide C. pleasant 查看答案