【简答题】在因特网中,屏蔽各个物理网络的差异主要通过下列哪个协议实现?( ) A)NETBEIU B)IP C)TCP D)SNMP
【判断题】皂化反应速率常数及活化能测定实验中用到的电极式甘汞电极。( )
【判断题】皂化反应速率常数及活化能测定实验中用到的电极式甘汞电极。( )
【单选题】在因特网中,屏蔽各个物理网络的差异主要通过以下哪个协议实现?
【判断题】取完试剂应随手盖好瓶盖,切不可张冠李戴,以防玷污。
【简答题】eliminate [ɪˈlɪmɪneɪt] v. 消除 They did everything possible to eliminate his chance to be elected to the White House.
【单选题】To eliminate child-labor , the Labor Organization, a special agency of the United Nations, has introduced several child0labor conventions among its members.
【单选题】[04013设集合M={a,b,c,d},N=(a,b,c),则集合M∪N=( )