常规咽部CT扫描要求病人做到（） A.平静呼吸状态 B.呼气后屏气 C.鼓气状态 D

项目监督有多种形式和规则，包括监督检查、项目稽查和( )。

A．贷款审查

B．项目报告

C．项目审计

D．财务报表

某300MW发电厂低压厂用变压器系统接线见图。已知条件如下：1250kVA低压厂用变压器：Ud%=6；额定电压比为6.3/0.4kV；额定电流比为114.6/1804A；变压器励磁涌流不大于5倍额定电流；6.3kV母线最大运行方式下系统阻抗Xa=0.444（以100MVA为基准的标幺值）；最小运行方式下系统阻抗Xs=0.87（以100MVA为基准的标幺值）。ZK为智能断路器（带延时过流保护，电流速断保护）I=2500A。 400VPC段最大电动机为凝结水泵，其额定功率为90kW，额定电流I=180A；起动电流倍数10倍，1ZK为智能断路器（带延时过流保护，电流速断保护）I=400A。 400VPC段需要自起动的电动机最大起动电流之和为8000A，400VPC段总负荷电流为980A，可靠系数取1.2。 请根据上述条件计算下列各题。（保留两位小数，计算中采用"短路电流实用计算"法，忽略引接线及元件的电阻对短路电流的影响。）

计算400V母线三相短路时流过DL的最大短路电流值应为下列哪项数值？（）

A.1.91kA

B.1.75kA

C.1.53kA

D.1.42kA

第二节 完型填空（共20小题；每小题 1.5 分，满分 30 分）

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

It was so cold that I couldn’t feel my legs. There was going to be a racing contest that night so I was 26  my horse, Skippy, up. I was simply running laps around the ring. The  27  cold air had been blowing past me, freezing my limbs, but every second I  28  it. You could hear the faint  29  of the people up at the clubhouse eating their dinner. My parents were also there, not knowing that my little sister had slowly wandered her way down to the ring. It was  30  because there was no moon or stars. Nobody else was in the ring at the time. I was really enjoying the  31  and I was able to  32  what Skippy was doing. As I took my last lap it  33  . Everything rapidly slowed down as I saw my little sister step  34   the ring. I saw true fear on her face because she knew she wouldn’t be  35  to move out of the way fast enough. She knew that she was going to get hit.

She tried to  36  but nothing came out of her fear-dried throat. When my horse got to her, he was still in a full out run.  37  , miraculously(奇迹般地), he slid so hard on his back feet that he  38 . It really made the  39  seem absolutely unreal. I thought that maybe I was  40 . I had  41  in my mind that I wasn’t seeing what was happening. I knew I had hit my sister. There was no way I could have  42  her. My horse was rising straight up and while he was in the air I couldn’t breathe. It’s like I forgot  43 . As all of this happened I watched my sister’s face transform (变形) through many different  44 : terror, confusion, curiosity, and then a sort of relief. Then she was laughing.

As I held my sister into my arms, Skippy stood right behind me knowing that I actually owed him my life  45  he saved my sister’s.

26.A. picking     B. warming                 C. catching                   D. setting

27.A. bitterly     B. hardly                    C. gently                  D. perfectly

28.A. challenged    B. witnessed        C. enjoyed                    D. hated

29.A. ceremony     B. tradition         C. victory                        D. laughter

30.A. windy          B. bright                     C. dark                         D. cloudy

31.A. quiet            B. quality                   C. impression            D.significance

32.A. rely on     B. focus on                 C. insist on                   D. put on

33.A. let out       B. held on               C. participated in           D.took place

34.A. close to      B. out of                 C. into                         D. towards

35.A. able          B. frightened        C. content                     D. proud

36.A. evaluate     B. worry                     C. scream                        D. escape

37.A. Accidentally  B. Normally           C. Generally                 D. Somehow

38.A. sped up     B. rose up                   C. broke down                 D. wore out

39.A. moment     B. contest                  C. comment                  D.technique

40.A. advancing     B. breathing            C. concluding           D. dreaming

41.A. that                 B. none                  C. neither                        D. it

42.A. hit           B. recognized              C. missed                    D. acknowledged

43.A. how             B. what                  C. when                       D. why

44.A. actions     B. emotions            C. attitudes                   D. thoughts

45.A. if                  B. because             C. as if                         D. so that

自然界中有许多动物为生存而进化成了很多适应环境的器官、探究下列动物，其中具有增大压强功能的器官有（　　）

A．啄木鸟有尖尖的喙

B．骆驼有宽宽的脚掌

C．蛇的体表面覆盖粗糙的鳞片

D．泥鳅体表有一层滑粘的液体

根据印花税法规规定，应税合同在签订时其纳税义务就已发生，应计算应纳税额并贴花。但是，如果已贴花的合同没有兑现，税务机关应将印花税款退还给纳税人。( )