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【简答题】
A friend of mine named Paul received an expensive car from his brother as a Christmas present.On Christmas Eve when Paul came out of his office,a street urchin was walking around the shining car."Is this your car,Paul?"he asked. Paul answered,"Yes,my brother gave it to me for Christmas."The boy was surprised."You mean your brother gave it to you and it cost you nothing?Boy,I wish..."He hesitated. Of course Paul knew what he was going to wish for.He was going to wish he had a brother like that. But what the boy said surprised Paul greatly. "I wish,"the boy went on,"that I could be a brother like that."Paul looked at the boy in surprise, then he said again, "Would you like to take a ride in my car?" "Oh yes,I'd love that." After a short ride,the boy turned and with his eyes shining,said,"Paul,would you mind driving in front of my house?" Paul smiled a little.He thought he knew what the boy wanted.He wanted to show his neighbours that he could ride home in a big car. But Paul was wrong again. "Will you stop where those two steps are?”, the boy asked. He ran up to the steps. Then in a short while Paul heard him coming back, but he was not coming fast. He was carrying his little crippled brother. He sat him down on the step and pointed to the car. "There she is, Buddy, just like I told you upstairs. His brother gave it to him for Christmas and it didn't cost him a cent. And some day I'm going to give you one just like it...then you can see for yourself all the nice things in the Christmas windows that I've been trying to tell you about." Paul got out and lifted the boy to the front seat of his car. The shining-eyed older brother climbed in beside him and the three of them began an unforgettable holiday ride. 注:urchin顽童 hesitate犹豫 neighbour邻居 crippled残疾 cent美分
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【单选题】细菌耐药机制不包括:()
A.
产生钝化酶和灭活酶
B.
青霉素结合蛋白改变
C.
药物浓度的改变
D.
药物作用靶位的改变
【简答题】在商务礼仪中,男士西服如果是两粒扣子,那么扣子的系法应为:() A两粒都系 B系上面第一粒 C系下面一粒 D全部敞开
【单选题】一般而言,在其他因素不变得情况下,固定成本越高,则( )。
A.
经营杠杆系数越小,经营风险越大
B.
经营杠杆系数越大,经营风险越小
C.
经营杠杆系数越小,经营风险越小
D.
经营杠杆系数越大,经营风险越大
【单选题】男士西服如果是两粒扣子,那么扣子的系法应为
A.
两粒都系
B.
系上面一粒
C.
系下面一粒
D.
全部敞开
【单选题】某电源电动势 ,则该电动势的有效值为()V。
A.
141
B.
100
C.
50
D.
314
【单选题】男士西服如果是两粒扣子,那么扣子的系法应为
A.
系上面第一粒
B.
两粒都系
C.
系下面一粒
D.
全部敞开
【单选题】细菌产生耐药性机制不包括()
A.
药物不能到达其靶位
B.
细菌所产生的酶使药物失活
C.
菌体内靶位结构改变
D.
代谢拮抗物形成增多
E.
细胞壁的渗透性改变使进入菌体的药物增多
【单选题】细菌产生耐药性的机制不包括
A.
加强主动流入系统
B.
降低外膜的通透性
C.
细菌的基因突变
D.
靶位的修饰与变化
【单选题】细菌的耐药机制不包括:()
A.
产生一种或多种水解酶、钝化酶和修饰酶
B.
改变抗生素作用的靶位
C.
细菌膜通透性下降
D.
主动外排系统的过表达
E.
通过休眠形式发育成芽孢
【单选题】细菌产生耐药性的机制不包括
A.
产生灭活酶
B.
降低细菌胞浆膜通透性
C.
细菌改变周围环境的pH
D.
细菌改变药物作用的靶位
E.
细菌改变自身代谢途径
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