最大残留限量
Which of the following commands should be used to show how much data is read from or written to a particular logical volume， given there are several other logical volumes on the same disk？（） [" sar"," lslv"," iostat"," filemo"]
工作风缸充气止回阀在制动减压时，能防止工作风缸内的压力空气向（）逆流，以避免产生不制动或制动力不成比例的现象。 ["列车管","制动管","总风管","撒砂管"]
有一宗房地产，评估基准日后第一年的纯收益预计为70万元，资本化率为8%，以后未来各年的纯收益将在上一年的基础上增长1%，则该宗房地产的在永续使用的前提下评估价值最近近于（）。 ["700万元","800万元","1000万元","1100万元"]
During reboot the system hangs with LED 0581 that indicates "Configuring TCP/IP." Which recovery procedures should be taken？（） ["Boot in maintenance mode， and verify the Ethernet adapter configuration.","Boot in maintenance mode， access the rootvg and check the \/etc\/inittab for corruption.","Boot in maintenance mode， access the rootvg and rebuild the boot image using the bosboot command.","Boot in maintenance mode after verifying the network connection， access the rootvg and check the \/etc\/rc.net file."]
（）是加强素质教育，提高体育教学质量，增进学生健康的物质保证。
