A:若将新生成的4条多肽链重新连接成一条长链将脱去3个H2O分子
B:若将得到的5个氨基酸缩合成5肽,则有5种不同的氨基酸序列
C:若新生成的4条多肽链总共有5个羧基,那么其中必有1个羧基在R基上
D:该50肽水解得到的几种有机物比原50肽增加了4个氧原子
请在下面的两题中任选一题作文。(1)请将下面的题目补充完整,写在作文格子里,然后写一篇不少于600字的文章。文内不得出现所在学校的校名、人名、地名,否则扣分。 题目: 哦,原来这才是 (哦:表示惊喜、惊奇、领会、醒悟、感叹等)(2)大海之于高山,是另一个地方;乡村之于城市,是另一个地方;社区之于校园,是另一个地方……远方对于眼前,未来对于当下,书中世界对于现实生活……也都是另一个地方。凝视自己的生活,遥望另一个地方,我们思潮涌动,我们好奇神往…… 那么——走,到另一个地方去。这是生活的变奏,是内心的召唤,是精神的指引。 请以“走,到另一个地方去”为题,写一篇文章。 要求:文体自选;不少于600字(写成诗歌不少于16行);不得抄袭本卷中材料;文中不得出现真实的地名、校名、人名等。
Jessica Wong from Hong Kong is good at using old jeans _______ handbags.
按要求画一画。
In recent years advances in medical technology have made it possible for people to live longer than in the past. New medicines and machines are developing every day to extend life. However, some people, including some doctors, don't agree with these life extending measures, and they say that people should have the right(权利)t o die when they want, They say that the quality of life is as important as life itself, and that people should not be forced to go on living when conditions of life have become unbearable. They say that people should be allowed to die with dignity(尊严) and to decide when they want to die. Others don't agree and say that life under any conditions is better than death and that the duty of doctors is always to extend life as long as possible. And so the quarrel goes on and on without a definite(明确的) answer.