【单选题】【消耗次数:1】
Excuse me. I don’t want to interrupt you but …
Can I help you?
Certainly, how dare you
It’s quite all right
Yes, you did
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相关题目
【单选题】 If you want to go, [] is quite all right with you.
①  that
②  which
③  and it
④  so
【判断题】 A: Let me help you with that. B: Thats all right. I can manage.
①  正确
②  错误
【单选题】 Can I help you with the bag?
①  No, no. I can take it myself
②  Thank you
③  Sorry, you can’t
④  No, I’m all right
【单选题】 13.Don’t ______ to let me know if there’s anything I can do for you.
①  thrill
②  hesitate
③  reject
④  puzzle
【单选题】 I’ m going to do all I can to____ the unpleasant impression you have of me.
①  move
②  remove
③  shift
④  transform
【单选题】 “Can I help you?” “Well, I’m afraid the box is too heavy for you, ____ thank you all the same.”
①  and
②  so
③  but
④  or
【单选题】 A: Excuse me. Can you tell me how to get to the tube?B: Turn right around the corner and then walk one block up. [填空].
①  You cant miss it
②  Just do that
③  Try that way
④  Sure thing,miss
【判断题】 It’s kind for you to help me.
①  正确
②  错误
【单选题】 Can I help you with your suitcase?
①  I have no idea
②  No, no. I can carry it myself
③  That’s a good idea
④  Thank you. I can manage myself
【单选题】 11.You hardly phone me. Why don’t you phone me _______.
①  often
②  . more often
③  always
④  more always
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【简答题】 兽药残留的危害有哪几方面?
【单选题】 测定水中细菌总数常用的接种方法是
①  分区划线法
②  连续划线法
③  倾注法
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①  吸液和吹液都应推到第二档
②  移液器吸头均不应该接触V孔中液体
③  取不同液体时一定要换吸头
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①  Taq DNA聚合酶
②  dNTPs
③  Mg2+
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⑤  合适pH缓冲液
【单选题】 PCR技术的本质是
①  核酸杂交技术
②  核酸扩增技术
③  核酸重组技术
④  核酸变性技术
⑤  核酸连接技术
【单选题】 移液的速度原则是:
①  慢吸快打
②  快吸慢打
③  快吸快打
④  慢吸慢打
【单选题】 反向吸液的方法是
①  二档吸,一档吹
②  一档吸,二档吹
③  一档吸,一档吹
④  二档吸,二档吹
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①  0.5%
②  1%
③  5%
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【单选题】 有关倒平板的操作错误的是
①  将灭菌的培养皿放在火焰旁的桌面上
②  使打开的锥形瓶口迅速通过火焰
③  将灭菌的培养皿靠近酒精灯火焰
④  将靠近酒精灯火焰的培养皿打开一个小口
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