在钻孔施工过程中，需要采取安全措施，防止施工过程中（）等发生。A.瓦斯涌出 B.煤与

数控加工中引入工件坐标系的作用是（）。

A、编程时可以减少机床尺寸规格的约束

B、编程时不必考虑工件在工作台上的位置

C、简化编程工作

D、减少选择刀具的约束

E、有利于程序调试

1928年弗莱明对青霉素的发现揭开了人类与病菌抗争的历史。80年后的今天，抗生素被许多人当成包治百病的“妙药”。由于抗生素的滥用，无意中培养出了许多“超级耐药菌”，面对病菌，人类将面临束手无策的尴尬局面。

(1)抗生素药物必须凭处方购买，它属于“OTC”吗？ ________。

(2)在使用青霉素前必须对患者进行皮试，否则有些患者会因为对青霉素过敏而发生休克甚至死亡。过敏反应是人体________功能的体现。

A．呼吸B．排泄C．消化D．免疫

(3)细菌耐药的变异，对个体生存有利，并容易遗传给下一代。因此，“超级耐药菌”的出现，可以用达尔文的____学说解释。

(4)关于抗生素的使用，以下哪些做法是正确的_______

A．定时服用抗生素以预防疾病B．一发烧就自行服用抗生素C．为了尽快治好病，加大服用剂量D．在医生的指导下正确使用

(5)请你写一句有关“反对滥用抗生素”的宣传标语。

Dear Sirs,
Your shipment of twelve thousand ’Smart’ watches was received by our company this morning. However, we wish to make a number of complaints concerning the serious delay in delivery and your failure to carry out our specific instructions with regard to this order.
It was stressed from the beginning that the delivery date had to be less than six weeks from the initial order in order to meet our own customers’ requirements. While we understand that delays in production are occasionally inevitable, we must point out that the major reason why the order was placed with your company was because we were assured by you of its speed of delivery, and that your existing stocks were sufficiently high to ensure immediate shipment. Late delivery of the goods has caused US to disappoint several of our most valued customers, and is bound to have a negative effect on potential future orders.
The second complaint concerns the difference in color between the watches we ordered and those delivered. It was stated clearly in the original order that watches in combinations of green/purple and orange/purple only were required. However, only half the watches in the delivery received are of the colors specified. Our Hong Kong agent assures US that she stressed to you the importance of following our instructions precisely, since we consider there to be only a limited market in this country for watches of other colors at the present time. Any watches that are not of the specified colors will, of course, be returned to you.
We are also somewhat concerned about the rather poor quality of the goods received, since it is apparent that the watches that finally arrived have been produced from inferior materials and have been manufactured to a lower standard than those in the sample. We have also found that a number of the watches do not appear to be functioning. Whether the latter problem is due to poor manufacture, damage during transportation or bad batteries is not yet clear, but we should like to point out that we feel this matter to be entirely your responsibility.

"The latter problem" in Paragraph 4 refers to ______.
A. the poor quality of the goods B. the use of inferior materials
C. the IOW standard of manufactureD. some of the watches not working

As a result of the above problems, therefore, we feel that the most suitable course of action is to return to you unpaid any of the goods considered unsatisfactory, and to subtract any resultant costs from our final settlement. We shall also, of course, be forced to reconsider whether any further orders should be placed with your company.
We look forward to your prompt reply.


Yours sincerely,


John Smith

某施工单位承担了一项传输设备安装工程，共有2个站，合同约定工期70天。项目部编制了进度计划（见图5），资源配备见下表5。施工单位项目经理及其他人员的人工成本按平均600元/天计算，本工程单机和系统调试租赁同一仪表。租赁费为2000元/天。 工程开始后，各队每天完成的工作量与计划相同。进行到第35天，项目部接建设单位封网通知，自次日起停工3天。进行到第45天，因使用不当造成仪表故障，停工4天。仪表装修费用5000元计入当日成本。停工期间，人员费用按正常人工成本50%计算，仪表使用费按原价计算。为了赶工，项目经理部系统测试人员从第1天晚上开始加班，连续加班6个晚上。每晚加班完成的工程量相当于正常日完成工作量的50%。人工成本与正常日人工成本相同，仪表不计使用费。

绘制时间-计划预算成本累计曲线。（曲线中需标注每10日末的累计值）。

二十八初孕妇，孕33周，自觉乏力、食欲差，伴恶心、呕吐2周，小便深黄色，皮肤瘙痒5日。查体：体温37.5℃，血压130/90mmHg，神志清，皮肤巩膜黄染，躯干及四肢皮肤可见散在出血点，肝肋下未触及，胎头入盆，胎心140次／分。

若ALT542U/L，总胆红素85.5μmol/L，结合胆红素46μmol/L，尿胆红素（+），HBsAg（+），本例最可能的诊断是（）

A.妊娠高血压疾病引起的肝损害

B.妊娠剧吐

C.妊娠急性脂肪肝

D.妊娠合并病毒性肝炎

E.妊娠肝内胆汁淤积症