互联网络给企业开展市场营销活动提供了哪些机会？

10 members were assigned in advance to your project team. This pre-assignment could because of all the following reasons EXCEPT:

A．People were promised as part of a competitive proposa

B．Suitable people came forward and mentioned that they wanted to work on the projec

C．Staff assignments were defined in the project charte

D．Project is dependent on the expertise of some of the pre-assigned person

我国规定，一般自动扶梯的倾角不超过（）。

A.40

B.15

C.30°

D.25

旅游签证在中国为L字签证，9人以上的旅游团可发给团体签证。( 　 )

鉴别盐酸、氢氧化钠、碳酸钠和氯化钠四种无色溶液，先分别取少量这四种溶液于试管中，再分别向这四支试管中滴入紫色石蕊试液．

（1）先被鉴别出来的两种物质是______、______，实验现象分别为______

（2）用已鉴别出来的物质，你认为______（选填“能”或“不能”）将另外两种溶液鉴别出来．若认为能鉴别出来，请按你设计的方案填写下列实验报告：

关于证券公司自营业务的内部控制，( )的选项是错误的。

A．应建立防火墙制度
B．应加强自营账户的集中管理和访问权限控制
C．应建立完善的投资决策和投资操作档案管理制度
D．证券公司应建立非独立的实时监控系统