问题
单项选择题
Slavery was () in Canada in 1833, and Canadian authorities encouraged the slaves, who escaped from America, to settle on its vast virgin land.
A．diluted
B．dissipated
C．abolished
D．resigned
答案
参考答案：C
解析：
dilute意为“稀释”；dissipate意为“驱散，浪费”；abolish意为“废除(法律，习俗等)”；resign意为“辞职”。故选C。