单项选择题

A research worker might ______ that the existence of such kind of disease is due to the pollution of the are

A． referB. inferC. conferD. prefer
<上一题 目录 下一题>
热门 试题

单项选择题
William never lends himself to ______ at cards.
A．gambling
B．gamble
C．having gambled
D．have gambled
单项选择题
Weather ______, our family can go to the grassland in Inner Mongolia and stay with herdsmen for a few days.
A．to permit
B．permits
C．permitting
D．permitted
相关试题