在双代号或单代号网络计划中，判别关键工作的条件是该工作（）。 自由时差最小。 与其紧后工作之间的时间间隔为零。 持续时间最长。 最迟开始时间与最早开始时间的差值。
Refer to the exhibit. Router RTA has been configured as a DHCP server. The two debug commands will generate output on RTA when Ho st A requests an IP address. Which set of DHCPD debug messages is in the correct sequence?（） DHCPD: Sending DHCPOFFER to client DHCPD: DHCPDISCOVER received from client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPACK to client。 DH CPD: DHCPDISCOVER received from client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPOFFER to client DHCPD: Sending DHCPACK to client。 DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPACK to client。 DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPACK to client。 DHCPD: Sending DHCPACK to client DHCPD: DHCPD ISCOVER received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client。 DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPACK to client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client。
试综述20世纪语言学、心理学、人类学的发展道路和功能影响的共通点。
（）是指党员的资格。凡是党员自动退党、被劝退出党、自行脱党、党员重新登记时未予登记、受到开除党籍的纪律处分以及被取消预备党员资格，就失去了党籍。
射出口有硬物衬垫时，创口周围可有（）。
当发动机怠速运转时，机油压力低于49kPa，高速时，机油压力低于（），称为发动机机油压力过低（偏低）。
