女性，55岁。颈部不适，左肩及左前臂麻木、疼痛，步态不稳1年，加重1个月。查体：颈椎活动可，左上肢大拇指皮肤感觉减退，左侧霍夫曼征阳性。X线检查：颈椎曲度减小，各间隙高度正常，双下肢膝踝反射亢进，巴宾斯基征阳性。哪种诊断最有可能（）。

A.肩周炎

B.脊髓型颈椎病

C.椎动脉型颈椎病

D.颈椎间盘突出

E.交感神经型颈椎病

(1) In the strength of the carrier signal is varied to represent binary 1 or 0.

(2) is a system that can map a name to an address and conversely an address to an name.

(3) is a three-way handshaking authentication protocol that it’s packets are encapsulated in the point-to-point protocol

(4) is an approach that enables an ATM Switch to behave like a LAN switch.

(5) is an guided media which is made of glass or plastic and transmits signals in the form of light.

5（）

A．Coaxial cable

B．Optical fiber

C．Unshielded Twisted-pair Cable

D．Shielded Twisted-pair Cable