诊断重症肌无力可以辅以哪些检查方法（） A.疲劳试验 B.血AChRAb C.腾喜龙

图4-1-13所示的为三相交变电流电源，连在电路中的各电阻丝B₁、B₂、B₃、B₄的阻值都相同，变压器都是电压比为2∶1的降压变压器，这些电阻丝消耗功率大小顺序排列（从大到小）应为 …（　　）

图4-1-13

A．B₁、B₂、B₃、B₄　　　　

B．B₄、B₃、B₂、B₁

C．B₄、B₂、B₃、B₁　　

D．B₃、B₁、B₄、B₂

2011年1月1日中俄原油管道正式投入运行，标志着中国东北方向的原油进口战略要道正式贯通。下图为中俄原油管道线路示意图。据此完成题。

小题1:中俄原油管道运输的优点是

A．连续性强，运量大

B．安全性能高，是目前发展最快的运输方式

C．运输效率高，是目前最快捷的现代运输方式

D．受自然因素影响小，是当代最重要的运输方式小题2:关于中俄原油管道运行意义的叙述，错误的是

A．有利于中国东北大气质量的改善

B．提高中国能源供给水平、改善能源进口结构

C．改善俄罗斯能源短缺的状况

D．促进俄罗斯资源优势转变为经济优势

Most "unassertive" people are not confident and take no for an answer much too easily. There is a growing awareness in our society that this tendency (1) the rights of large numbers of people. For example, in recent years there has been an upsurge in (2) and pressure groups. This is a (3) as there will always be a need for such organizations to (4) individuals and minorities in a competitive society. The danger is that we (5) for our rights and lose the art of asserting ourselves. It is better for (6) with other people if you can learn (7) for yourself.
Now, we have to learn to ignore some of the (8) that may be ringing in our unconscious minds, such as: "If you ask once more, I’ll flatten you", and " (9) ".
The main technique that we use in (10) to practice the art of persistence is called Broken Record. (11) we hear one sentence over and over again until we reach screaming pitch and (12) .
Broken Record is the skill of being able to repeat over and over again, (13) , what it is you want or need, until the other person gives in or (14) .
Now, this technique is extremely useful for dealing with situations where your rights are clearly (15) , or coping with situations where you are likely to be diverted by clever, (16) .
The beauty of using Broken Record is that you (17) because you know exactly what you are going to say, however (18) the other person tries to be.
As with most assertive techniques, it must be used appropriately. It is (19) and is not designed to foster deep, interesting conversations and friendships with people! It is primarily of use in situations where (20) .

翼上出口撤离时，负责翼上出口的乘务员应站在翼下使用口令指挥旅客迅速撤离，让旅客远离飞机。（）

（）不是饭店火灾的特点。

A、高层建筑多，火势蔓延快

B、疏散人员困难

C、功能布局复杂，消防困难

D、可燃物少，毒气量小