【单选题】【消耗次数:1】
_______ my parents refused to support me, I have to earn money by myself.
When
Even
Since
So
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相关题目
【单选题】 Alice: Natalie must have left since your plane arrived so late.Sam: To my surprise, I found her waiting for me at the airport.Alice: ___________
①  What a pity.
②  How kind.
③  Good for her.
④  No kidding.
【单选题】 Alice: Natalie must have left since your plane arrived so late. Sam: To my surprise, I found her waiting for me at the airport. Alice: ___________
①  What a pity.
②  How kind.
③  Good for her.
④  No kidding.
【单选题】 I will take my daughter with me when I __________ Shanghai.
①  go to
②  will go to
③  have been to
④  have gone to
【单选题】 I will take my daughter with me when I_______ Shanghai.
①  go to
②  will go to
③  have been to
④  have gone to
【单选题】 I have been looking forward to ____ from my parents.
①  :hear
②  :being heard
③  :be heard
④  :hearing
【单选题】 My father_______take me to travel when I was a child.
①  was used to
②  used
③  used to
【单选题】 This photo reminds me ___ the days when I worked ___ the farm with my classmates.
①  ?about; in
②  ?of; on
③  ?of; in
④  ?about; on
【单选题】 The credit cards permit people to borrow-to-buy things they want even when they ( ) have enough money to pay the full price.
①  do not
②  do
③  does
④  does not
【单选题】 -Let me introduce myself, I’m Albert. - ____.
①  Pleased to meet you.
②  I’m very pleased.
③  Its my pleasure.
④  What a pleasure.
【单选题】 My friend and adviser _____ to lend me his money.
①  have agreed
②  has agreed
③  agreed
④  are agreed
随机题目
【单选题】 某中药提取液只加盐酸不加镁粉,即产生红色的是
①  黄酮
②  黄酮醇
③  二氢黄酮
④  异黄酮
⑤  花色素
【单选题】 下列黄酮中酸性最强的是
①  3-OH黄酮
②  5-OH黄酮
③  5,7-二OH黄酮
④  7,4-二OH黄酮
⑤  3,4-二OH黄酮
【单选题】 构成黄酮类化合物的基本骨架是
①  6C-6C-6C
②  3C-6C-3C
③  6C-3C
④  6C-3C-6C
⑤  6C-3C-3C
【单选题】 四氢硼钠试剂反应用于鉴别
①  黄酮醇
②  二氢黄酮
③  异黄酮
④  查耳酮
⑤  花色素
【单选题】 黄酮类化合物的酸性是因为其分子结构中含有
① 
②  羰基
③  酚羟基
④  氧原子
⑤  双键
【多选题】 Emerson反应呈阳性的化合物是
①  6,7-二羟基香豆素
②  5,7-二羟基香豆素
③  7,8 -二羟基香豆素
④  3,6 –二羟基香豆素
⑤  6-羟基香豆素
【多选题】 区别6,7-呋喃香豆素和7,8-呋喃香豆素时,可将它们分别加碱水解后再采用
①  异羟肟酸铁反应
②  Gibb′s反应
③  Emerson反应
④  三氯化铁反应
⑤  醋酐-浓硫酸反应
【多选题】 香豆素类成分的生物活性主要有
①  抗菌作用
②  光敏活性
③  强心作用
④  保肝作用
⑤  抗凝血作用
【多选题】 提取游离香豆素的方法有
①  酸溶碱沉法
②  碱溶酸沉法
③  乙醚提取法
④  热水提取法
⑤  乙醇提取法
【多选题】 下列含木脂素类成分的中药是
①  白芷
②  秦皮
③  补骨脂
④  五味子
⑤  牛蒡子