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第二节:完形填空(共20小题;每小题1.5分,满分30分) 阅读下面短文,掌握其大意,然后从16-35各题所给的A、B、C、D四个选项中,选出最佳选项。 Kindness at fast-food restaurant It was summer and I had gotten one of the few jobs a 14-year-old can find—working at Burger King,a fast-food restaurant.It  16  wasn’t a good job,but it meant money,  17  was something I needed. One day,I was working behind the front counter,taking  18  .The customers were coming and going,and the woman who  19  didn’t seem any different from most others. She ordered her meal and I told her the total.As she searched  20  her purse to find some change,the woman soon  21  that she was about a dollar short.“I’m  22  to say this,but I guess I won’t be able to make my purchase  23 ,”she said sadly That’s when I had the idea of paying the difference for her. She refused at first,but after I 24  ,she agreed.She thanked me and moved to the end of the counter to  25  her order.I continued with my work and thought  26  more of it About an hour later  27  had slowed down and I was waiting for my next customer.Then I glanced over towards the  28  and saw the same woman whom I’d helped with the money entering again.I  29  recognized her. She walked straight up to me and said,“I want to thank you again for what you did.You see,I’m a diabetic(糖尿病患者),and  30  I need to eat something right away.That’s  31  I came in earlier.If you hadn’t helped me as you did,I  32  have fainted.Thank you.” She handed me two dollars,  33   I’d given her. 34  the woman walk away,I realized that God had used me to help me.In the end,I was  35  not only with money but also with the satisfaction of knowing that I’d helped someone out of a tight spot. 16.A.firstly          B.roughly       C.certainly          D.strictly 17.A.which          B.what            C.that                 D.it 18.A.menus             B.orders              C.service             D.food 19.A.reached           B.moved             C.presented         D.approached 20.A.through       B.for                  C.about               D.across 21.A.recognized       B.realized           C.admitted          D.said 22.A.guilty              B.disappointed     C.embarrassed     D.regret 23.A.above all         B.first of all        C.in all               D.after all 24.A.insisted on    B.insisted            C.stuck to           D.stuck 25.A.pick up            B.pick out           C.carry out          D.bring out 26.A.none               B.anything          C.nothing            D.something 27.A.cnstomers        B.orders              C.pressure           D.business 28.A.entrance          B.restaurant         C.counter            D.window 29.A.suddenly          B.immediately     C.surely              D.completely 30.A.at a time          B.at time             C.sometime         D.sometimes 31.A.when               B.where              C.why                D.how 32.A.shall                B.may                C.might              D.need 33.A.twice that        B.twice what       C.that twice         D.what twice 34.A.Watching         B.Looking           C.Observing        D.Noticing 35.A.awarded          B.honored           C.returned           D.rewarded
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举一反三
【单选题】氯丙嗪降温作用主要是由于
A.
抑制PG合成
B.
抑制大脑边缘系统
C.
抑制体温调节中枢
D.
阻断纹状体多巴胺受体
E.
阻断外周a受体
【单选题】氯丙嗪降温作用主要是由于
A.
抑制PGE合成
B.
抑制大脑边缘系统
C.
抑制体温调节中枢
D.
阻断纹状体多巴胺受体
E.
阻断外周α受体
【判断题】电磁继电器按触头类型不同可分为常开型、常闭型和组合型。
A.
正确
B.
错误
【单选题】关于Ⅱ型限制性核酸内切酶,下列说法中错误的是() 
A.
每一种酶都有各自特异的识别序列
B.
酶的识别序列中往往含有回文结构
C.
每一种酶都在识别位点内部或两侧切割
D.
每一种酶的识别序列都绝对不相同
【简答题】简述货币的本质和职能。
【单选题】关于限制性内切酶,下列说法错误的是()。
A.
限制性内切酶是从细菌中分离提纯的蛋白酶
B.
限制性内切酶可以识别一小段特殊的核酸序列
C.
利用限制性内切酶可将外源基因连接到不同的载体上
D.
限制性内切酶是基因重组和克隆操作的重要工具
【单选题】关于II型限制性核酸内切酶,下列说法中错误的是
A.
每一种酶的识别序列都绝对不相同
B.
每一种酶都在识别位点内部或两侧切割
C.
酶的识别序列中往往含有回文结构
D.
每一种酶都有各自特异的识别序列
【单选题】下列关于限制性内切酶的说法,错误的是()
A.
限制性内切酶主要是从微生物细胞中分离提纯的
B.
一种限制性内切酶只能识别一种特定的核苷酸
C.
限制性内切酶不能将目的基因连接到不同的运载体上
D.
限制性内切酶既可切割链状DNA也可切割环状DNA
【单选题】关于限制性内切酶,下列说法中错误的是( )
A.
每一种酶都有各自特异的识别序列
B.
酶的识别序列中往往含有回文结构
C.
每一种酶都在识别位点内部或两侧切割
D.
每一种酶的识别序列都不相同
【单选题】氯丙嗪降温作用主要是由于
A.
抑 制PG合成
B.
抑制大脑边缘系统
C.
抑制海体温调节中枢
D.
阻断纹状体多巴胺受体
E.
阻断外周a受体
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