将PC机组成以太局域网必须用到网卡、中继器和集线器等设备，其中的一种设备可用来对接收

下列哪项不是落枕的发病原因的是（）。

A.睡觉时枕头过高

B.睡觉时枕头过低

C.睡觉时头颈过度偏转

D.睡觉时颈部遭受暴力打击

E.睡觉时枕头过硬

Boitumelo, a qualified engineer, was a managing director of Molapo Ltd. The company was engaged in the business of offering certain engineering services to low cost housing development companies in Gaborone. Boitumelo had in the past successfully acquired several such contracts for Molapo Ltd. While negotiating another such contract with Savuti (Pty) Ltd, Boitumelo was informed by the board of directors of Savuti (Pty) Ltd that they had no desire to do business with Molapo Ltd but would be prepared to offer the contract to Boitumelo in her personal capacity. As a result, Boitumelo resigned as managing director of Molapo Ltd and accepted the offer from Savuti (Pty) Ltd.Required:Explain whether Molapo Ltd would be entitled to claim from Boitumelo the benefits that accrued to her under her contract with Savuti (Pty) Ltd. (10 marks)

请将下列疾病（①～④）分别与右侧相关叙述（A～D）对应，填在对应序号后面．

①糖尿病                   A．可食用含铁和蛋白质丰富的食物来预防

②艾滋病                   B．可采用骨髓移植的方法治疗

③贫  血                   C．由胰岛素分泌不足引起

④白血病                   D．可通过性、血液等途径传播

①．______；   ②．______；   ③．______；    ④．______．

《锦江之星客户联络中心》--锦江之星连锁店销售渠道分为直销和（）两种。

试叙述型号为Y180M2-4的电动机所表示的意义？