A nature reserve for white－flag dolphins was set up in 1992, ________ boats have

题干

A nature reserve for white－flag dolphins was set up in 1992, ________ boats have been
prohibited from sailing around since then.

A．where

B．which

C．when

D．what

上一题下一题 0.85难度单项选择更新时间:2010-06-08 11:24:11

小学学科试题库

初中学科试题库

高中学科试题库