【简答题】【消耗次数:1】
Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]3. These mew ideas are[填空1]into the minds of the younger generation.
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【简答题】 Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]1. Their national economy is[填空1].
【简答题】 Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]8. The most[填空1]feature is the painted wall decoration.
【简答题】 Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]5.None of them contain the[填空1]that you need.
【简答题】 Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]7. The speaker has an hour to[填空1]his views to the public.
【简答题】 Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]2. On the right,[填空1]the title bar(but not the title itself) for the business space or the page.
【简答题】 Direction: Fill in the blanks with the words given below. Change the form if necessary.[privilege; component; stagnant; entangle; superficial; arresting; expound; penetrating; indulge; click]9. The policy would[填空1]the nation in conflicts that could easily lead to war.
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随机题目
【单选题】 苦杏仁苷酶水解的最终产物包括
①  葡萄糖、氢氰酸、苯甲醛
②  龙胆双糖、氢氰酸、苯甲醛
③  野樱苷、葡萄糖
④  苯羟乙腈、葡萄糖
⑤  苯羟乙腈、龙胆双糖
【多选题】 煎煮法适宜使用的器皿是
①  不锈钢器
②  陶器
③  瓷器
④  铁器
⑤  砂器
【多选题】 常用溶剂中不能与水完全混溶的溶剂是
①  乙醇
②  丙酮
③  乙醚
④  正丁醇
⑤  氯仿
【多选题】 一般情况下,认为是有效成分的是
①  生物碱
②  叶绿素
③  多糖
④  黄酮
⑤  皂苷
【多选题】 用水蒸气蒸馏法提取中药化学成分,要求此类成分
①  能与水反应
②  易溶于水
③  具挥发性
④  热稳定性好
⑤  极性较大
【多选题】 下列关于有效成分的描述错误的是
①  需要提纯的成分
②  含量高的成分
③  一种单体化合物
④  具有生物活性的成分
⑤  具有生物活性的提取物
【单选题】 连续回流提取法与回流提取法相比,其优越性是
①  节省时间且效率高
②  节省溶剂且效率高
③  受热时间短
④  提取装置简单
⑤  提取量较大
【单选题】 从中药中提取化学成分最常用的方法是
①  溶剂法
②  蒸馏法
③  升华法
④  分馏法
⑤  超临界萃取法
【单选题】 不易溶于水的成分是
①  生物碱盐
②  苷元
③  鞣质
④  蛋白质
⑤  树胶
【单选题】 下列各组溶剂,按极性大小排列,正确的是
①  水>丙酮>甲醇
②  乙醇>醋酸乙脂>乙醚
③  乙醇>甲醇>醋酸乙脂
④  丙酮>乙醇>甲醇
⑤  苯>乙醚>甲醇