【C4】A．sourceB．resourceC．originD．means

A．sourceB．sourcesC．resourceD．resources

【C5】A．sourceB．factorC．componentD．element

When the millionaire died， his son was left a lot of wealth.A.luckB.resourceC.propertyD.fo

回答（53）题 查看材料A.sourceB.existenceC.friendsD.fish

【C9】A．sourceB．originC．resourceD．project

A．sourceB．factorC．componentD．element