井下用的润滑油、棉纱、布头和纸等,用过后可任意摆放。()
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柴油机的进排气管多分开安装,不在缸盖的同一侧,这可以避免排气温度过高对进气管的影响,以降低充气效率。
A. 正确
B. 错误
血迹鉴定常用()
A. 凝集反应
B. 环沉试验
C. 中和试验
D. ELISA
E. 淋巴细胞转化试验
Which type of EIGRP route entry describes a feasible successor?()
A. a primary route,stored in the routing table
B. a backup route,stored in the routing table
C. a backup route,stored in the topology table
D. a primary route,stored in the topology table