问题
单项选择题
从杂合高茎豌豆（Dd）所结种子中任取两粒种植，它们都发育成高茎植株的概率是（）
A.1/4
B.1/2
C.3/4
D.9/16
答案
参考答案：D
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从杂合高茎豌豆（Dd）所结种子中任取两粒种植，它们都发育成高茎植株的概率是（）
A.1/4
B.1/2
C.3/4
D.9/16
参考答案：D
| 完形填空。 |
| Sato Miyoko is a Japanese schoolgirl. She didn't have a camera. 1 she lives out in the country, there is no place 2 a very good camera. She decided to buy a digital camera online 3 it could be sent to her. She had searched the Internet for two hours 4 she found an ad for the Sony digital camera. She liked the 5 . After she had found more information, she asked her father if she 6 buy it. Mr. Sato looked at the ad. Then he found ads for other cameras 7 . After he had checked out all the information about different kinds of cameras, he believed his daughter had 8 a good decision. This camera seemed to offer the most at the 9 price. He helped her order the camera online. Miyoko clicked 10 the screen, and a form. appeared for her to fill in her personal information. Her dad helped her 11 the form. and typed in his credit card number. Miyoko filled in their 12 , address and e-mail address. Then a screen came up that read, "Congratulations! You have 13 bought a Sony camera." A week later Miyoko received the camera she had 14 . Miyoko came to Beijing with her friends last month. She enjoyed her visit to Beijing so much that she 15 with the new camera. They will help her remember this special trip forever. |
| ( )1. A. For ( )2. A. buy ( )3. A. so ( )4. A. when ( )5. A. ad ( )6. A. will ( )7. A. as well ( )8. A. got ( )9. A. good ( )10. A. in ( )11. A. fill in ( )12. A. telephone ( )13. A. never ( )14. A. seen ( )15. A. has a good time C. takes a lot of photos | B. As B. find B. that B. then B. picture B. can B. by the way B. made B. better B. on B. fill B. names B. successfully B. made | C. Because of C. to buy C. so that C. while C. information C. must C. in the end C. found C. best C. with C. write C. ages C. success C. ordered B. had a good time D. took a lot of photos | D. As if D. to find D. while D. after D. size and shape D. could D. at last D. did D. most D. at D. copy D. telephone number D. yet D. bought |