单选题：The walls are made of hollow concrete blocks.

题目内容：

The walls are made of hollow concrete blocks. A．big
B．long
C．new
D．empty

参考答案：

答案解析：

Aromatherapy is believed to__________ in various ways.

Aromatherapy is believed to__________ in various ways.A．have healing effects B．b

分类：卫生类题型：单选题

回答题。Some Schooling on BackpacksAccording to the U.S. Consumer Product Safety Com

分类：卫生类题型：单选题

His stomach felt hollow with fear.A．sincere B．respectful C．empty D．terrible

分类：卫生类题型：单选题

回答题。Stanford University1. Stanford University, famous as one of northern Califor

分类：卫生类题型：单选题

The italicized word "prolific" ( line 2, Para. 3 ) is synonymous to__________.A

分类：卫生类题型：单选题