实验室区别一氧化碳和氢气应选用的方法是请选择DCBA6U4A-w'N-|1O2Y.z1l7s4|/S9x.^,F/o1}
A．称量-|1O2Y.z1l7s4|/S9x.^,F/o1}
B．点燃，用石灰水检验产物-|1O2Y.z1l7s4|/S9x.^,F/o1}
C．闻气味，检查有无毒性-|1O2Y.z1l7s4|/S9x.^,F/o1}
D．将两种气体分别通入石灰水中-|1O2Y.z1l7s4|/S9x.^,F/o1}