矿物表面的捕收剂由于烃链间相互吸引缔合，在矿物表面形成二维空间胶束的吸附，称为（）。
参考答案：半胶束吸附
A woman in her 8th month of pregnancy is having dinner with her husband at their favorite restaurant. The woman suddenly chokes on a piece of chicken and appears to lose consciousness. What would be the best action by a nurse sitting at the next table
A. Apply abdominal thrust.B. Apply chest thrust.C. Begin cardiopulmonary resuscitation (CPR).D. Reposition the client on her sid
下列关于通过数据通信线路连接到ISP的叙述中，错误的是______。
A．综合业务数字网(1SD是一种数据通信网
B．使用数据通信线路连接到ISP可以得到更多的带宽
C．通过数据通信网接入Internet的用户主要是个人用户和部分小型企业用户
D．数据通信网的传输速率通常在64Kbps～2Mbps之间
