arbitrary
non-arbitrary
logical
non-productive
第1题：
The author uses the example of middleman to show
A．market transactions are important in different countries.
B．dealers are needed in doing business.
C．middlemen can play great role in different transactions and different countries.
D．middlemen in different countries have different actions in business.
第2题：
The newly described languages were often so strikingly different from the well studied languages of Europe and Southeast Asia that some scholars even accused Boas and Sapir of fabricating their data Native American languages are indeed different, so much so in fact that Navajo could be used by the US military as a code during World War II to send secret messages.
第3题：
第4题：
A.speak
B. speaks
C.Spoke
D. speaking
第5题：
此题为判断题(对，错)。
第6题：
Which of the following is not among the basic features of a relational database?
A．It does not matter what order the rows are in.
B．It does not matter what order the columns are in.
C．Different columns should have different column names.
D．Different columns should have different data types.
第7题：
The markets for treasury bills in most developed countries have many different buyers and sellers.
A．Right
B．Wrong
C．Doesn't say
第8题：
Body language can sometimes lead to () since people of different cultures often have different forms of behavior. for sending the same message or have different interpretations of the same signal.
A、effectiveness
B、misunderstanding
C、agreement
D、communication
第9题：
此题为判断题(对，错)。
第10题：
Homographs are words identical in form. but different in pronunciation.()