分离黄酮类化合物宜选用 A．氧化铝吸附色谱 B．聚酰胺色谱 C．分配色谱 D．pH梯

乐Pad作为平板电脑，重量只有（）克，厚度仅有（）mm，便于用户携带和随时随地使用。

A.750；12.9

B.750；13

C.760；12.9

D.760；13

温度感受器的传入神经为（）。

A.Ⅲ类和Ⅳ类

B.C类

C.Aδ类

D.γ神经元

E.Ⅱ类和Ⅲ类

When you are (71) a home or small office network, it is recommended that you use the Network Setup Wizard in Windows XP Home Edition to enable Internet Connection Sharing. The Network Setup Wizard automatically provides all of the network settings you need to (72) one Internet connection with all the computers in your network.
After ICS is enabled, and you make sure that all of your computers can (73) with each other and they have Internet (74) , you can use programs such as Internet Explorer and Outlook Express as if they were (75) connected to the Internet service provider (ISP). When a request to the Internet is made, the ICS host computer connects to the ISP and creates the connection so that other computers can reach a specified Web address or download E-mail.

A．creating

B．reach

C．going for

D．setting up

下列关于投资项目风险因素识别的表述错误的是( )。

A．风险的最基本特征是具有不确定性和可能造成损失，要由此入手识别风险因素

B．投资项目风险具有相对性，项目的有关各方可能会面临不同的风险

C．风险因素识别要注意借鉴历史经验，特别是后评价的经验

D．风险因素识别可采用分析和分解的方法，但一般只分析到第一个层次

根据我国《海商法》规定，对于海上客运承运人的责任实行一定范围的推定责任制，它是（）.

A.根据事实对承运人的责任做出推定

B.首先推定承运人有过失，再由其用证据推翻该种推定

C.推定过失相当于认定过失

D.以上说法都不正确