单项选择题
A．visible: sight B．unbreakable: glass C．porous: liquid D．slippery: glue E．reflective: hamper
A．savant: doctrine B．criminal: arson C．coward: cravenness D．schoolmate: sociability E．expert: amateurism
A．insult: suffering B．commence :journey C．contribute: revenue D．transmit: wave E．enchant: magic