噬菌体在增殖过程中利用的原料是（） A.细菌的核苷酸和自己的氨基酸 B.噬菌体的核苷 发布时间：2019-02-22 07:39 │ 来源：www.tikuol.com 题型：单项选择题 问题： 噬菌体在增殖过程中利用的原料是（）A.细菌的核苷酸和自己的氨基酸B.噬菌体的核苷酸和细菌的氨基酸C.细菌的脱氧核苷酸和氨基酸D.噬菌体的氨基酸和细菌的核苷酸
题型：单项选择题 完形填空。 Rudi Matt lived in a small village in the Swiss Alps in 1865. What he wanted most in the world was to climb 1 highest peak (山峰) in the Alps. 2 mother and his uncle, Franz, a mountain guide, wanted him tostop 3 and start working in a hotel. Rudi would not 4 his dream and secretly got in touch with an English mountain climber 5 was planning to climb the highest peak. Franz was very angry when he found out 6 Rudi had done, but he finally agreed to let Rudi go if he wentclimbing, too. Franz also didn't want to see Emil Saxo, a guide from another village, got to the top 7 him. Rudi turned out to be a very good climber, 8 as they got close to the top, the Englishman got sick andcouldn't go on farther. Franz 9 behind to take care of him, but Saxo continued, wishing to be the 10 to the top. Rudi went after Saxo, hoping to 11 him to the top. When they met, Saxo fought with Rudi and fell downby accident. Saxo was 12 and hurt. Rudi must decide whether to carry Saxo back down to safety or to continue alone to the top. He thought Saxo's life was more 13 than his dream and helped him down. During that time, theEnglishman and Franz continued the climb, and finally 14 reached the top. Later, the villagers 15 knew Rudi was the real conqueror (征服者) of the mountain. ( )1. A. the ( )2. A. Rudi ( )3. A. climbing ( )4. A. try out ( )5. A. what ( )6. A. which ( )7. A. after ( )8. A. but ( )9. A. walked ( )10. A. first ( )11. A. take ( )12. A. helpful ( )13. A. popular ( )14. A. he ( )15. A. both B. a B. The Rudi's B. climb B. give up B. which B. what B. behind B. so B. rested B. second B. beat B. helping B. successful B. they B. none C. an C. Rudis' C. to climb C. go over C. whom C. that C. before C. or C. stayed C. third C. push C. helps C. importantC. them C. either D. / D. Rudi's D. climbed D. work out D. who D. where D. over D. for D. watched D. last D. help D. helpless D. interesting D. him D. all 查看答案
题型：单项选择题 定义在R上的函数f(x)满足(x+2)f′(x)＜0，又a=f(log123)，b=f((13)0.3)，c=f(ln3)，则（ ）A．a＜b＜cB．b＜c＜aC．c＜a＜bD．c＜b＜a 查看答案