单项选择题
The term nonverbal communication ______ a number of categories: body language, vocal intonations, physical objects, and space, among others.
单项选择题 New technology is making the traditional farming machinery and methods ______.
单项选择题 Historians share one fundamental ______ that we can learn from the mistakes of our past.
单项选择题 If securities of a foreign corporation are sold in the US, the corporation is ______ to the US law.
