— There are 60 students in my class and 44 of them use weibo very often.

— 44? That means about _____ of your classmates are weibo users, right? [ ]

A. half

B. one third

C. two thirds

D. three quarters

涉及水土保持的建设项目环境影响报告书必须包括( )。

A．水土保持方案
B．经国土资源行政主管部门审查同意的水土保持方案
C．经水行政主管部门审查同意的水土保持方案
D．经环境保护行政主管部门审查同意的水土保持方案