按照《中国电信MSTP跨长途传送网提供以太网业务的技术要求》，对于满足CIR（承诺带

患者，男性，60岁，缓起左上肢放射性疼痛伴乏力4月，双下肢无力3月。查体：左上肢肌力3级，右上肢肌力4级，双下肢肌力2级，小便困难，双侧肱二头肌反射减弱，肱三头肌反射亢进，双膝反射亢进，双侧病理反射阳性，颈部以下感觉消失。腰穿压颈试验不通畅。

考虑诊断为（）

A.格林-巴利综合征

B.肌萎缩性侧索硬化

C.急性脊髓炎

D.急性脊髓灰质炎

E.脊髓压迫症

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet. Heterogeneous network environments consist of computer systems from (66) vendors that run (67) operating systems and communication protocols. An organization that (68) its computer resources is usually (69) the task of integrating its heterogeneous systems. Typically, each deparlment or division has defined its own network needs (70) OS, LAN topology, communication protocols,applications, and other components.

A．same

B．similar

C．different

D．difference

油品的灰分测量中必须掌握燃烧速度，维持火焰高度在（）cm左右，以防止试油飞溅以及过高的火焰带走灰分微粒。

A.5

B.10

C.15

D.20

科学发现包含（）两大阶段。

A.构建假说

B.提出假说

C.判别假说

D.确定假说

保证气压制动系统内压缩空气不倒流的部件称为（）。

A、快放阀

B、单向阀

C、感载阀

D、继动