We don’t know which company she was _________ (refer to) when she talked about competing firms at the meeting.
查看答案
The police are trying to _________ (certain) exactly who were at the party last night when the fire took place.
If you want to become master of a language you have to study it in ________ (deep) for years.
Last week the plane crashed in the desert and the scientists are now ____________ (investigate) to find out the cause of the crash.
广播电视新闻节目越来越要求权威性、信息量和可看性的高度统一。
A. 对
B. 错