课程设计的认知发展取向
叉车载重升降和行驶时，门架应（），禁止前倾。 ["前倾","后倾","垂直或后倾","垂直"]
When testing ICMP access to a functional load-balancing ACE VIP， it fails. What is the reason of this problem？ （） [" The interface is shut down"," An access list is denying ICMP"," Routing is not configured properly"," vip icmp-reply is inactive"]
进口气瓶未经（）批准认可且具有合格证的气瓶，禁止充装。 ["市级安全监察机构","省级安全监察机构","国家安全监察机构"]
某公司按面值发行年利率为7%的5年期债券2500万元，发行费率为2%，所得税率为33%，试计算该债券的资本成本。
种群
