列车长对使用非站售座席的旅客回访率要达到（），防止出现卖座问题。 百分之五十。 百分之七十。 百分之九十。 百分之百。
地震勘探野外采集工作主要包括哪些内容？
人格修养指导是其他管理方法的基础，在班级管理过程中处于核心地位。
Workstation A has been assigned an IP address of 192.0.2.24/28. Workstation B has been assigned an IP address of 192.0.2.100/28. The two workstations are connected with a straight-through cable. Attempts to ping between the hosts are unsuccessful. What two things can be done to allow communications between the hosts? （） Replace the straight-through cable with a crossover cable.。 Change the subnet mask of the hosts to /25.。 Change the subnet mask of the hosts to /26.。 Change the address of Workstation A to 192.0.2.15.。 Change the address of Workstation B to 192.0.2.111.。
下列哪一种猪肉是正常的（）。 颜色呈深红色。 肉色暗红且表面干燥。 表面有光泽且肉色呈淡红色。 水样肉。
区分直接投资和间接投资的基本标志是在于（）。
