单项选择题

Work in parapsychology, ______, has attracted a rel atively small number of scientists.

A．is a very controversial field
B．a field very controversial which
C．which a very controversial field is
D．a very controversial field
<上一题 目录 下一题>
热门 试题

单项选择题
We need help with the fourth problem; it ______ us.
A．persists
B．permeates
C．perplexes
D．perturbs
单项选择题
One of the requirements for a fire is that the material ______ to its burning temperature.
A．will be heated
B．would be heated
C．is heated
D．be heated
相关试题