(单选题)18: 具有螺缩酮基本骨架的皂苷元,其中25S和25R相比 A: 25R型比25S型稳定 B: 25S型比25R稳定 C: 25S型与25R型都稳定 D: 25S型与25R型都不稳定 ...
(单选题)12: 在5% NaHCO3水溶液中溶解度最大的化合物是 A: 3,5,7三羟基黄酮 B: 7,4'-二羟基黄酮 C: 3,6二羟基花色素 D: 2'-OH查耳酮 ...
(单选题)6: 根据苷原子分类,属于硫苷的是 A: 山慈菇苷A B: 萝卜苷 C: 巴豆苷 D: 天麻苷 ...
(问答题)24: 写作:Instructions:建议你在30分钟内,根据下面所给的题目和提纲用英语写出一篇不少于80词的短文。 The Chinese New Year (1).简单介绍中国新年即春节; (2).你最喜欢的新年庆祝活动。 ...
18: 完形填空,请将①-⑤空的正确选项填写到答题区: There are five incomplete sentences in the following passage. Read the passage and choose the word that best fits into the passage, Do remember each word can be used only once. ...
(单选题)12: We were in the same college, ______ was male-only at that time. A: that B: which C: it D: although ...
(单选题)6: 词汇与结构,请回答6-15题Had I got there five minutes earlier, I could ______ her. A: have met B: meet C: meeting D: to meet ...
43: 卫生监督调查取证的原则有迅速及时原则、##、##和回避原则。 ...
37: ##是卫生法律规范的实现形式。 ...
(问答题)31: 简述学校突发公共卫生事件处理原则? ...