单选题：The author explains the role of food in celebrations by____

题目内容：

The author explains the role of food in celebrations by______. A．using examples
B．making comparisons
C．analyzing causes
D．describing processes

参考答案：

答案解析：

D

DThere are an extremely large number of ants worldwide. Each individual (个体的)

分类：英语题型：单选题

分类：英语题型：单选题

设nA为阿伏伽德罗常数的数值，下列说法正确的是 A．23g Na 与足量H2O反应完全后可生成nA个H2分子 B．1 molCu和足量热浓硫酸反应可生成nA个S

分类：英语题型：单选题

What is the probable relationship between the speakers?A．Salesperson and custome

分类：英语题型：单选题

What is the woman's opinion about the course?A．Too hard. B．Worth taking. C．Very

分类：英语题型：单选题