环境质量下降，生态环境遭到破坏的重要原因是 [ ]
A．工业生产的快速发展
B．农业生产的进步
C．人口的过度增长
D．科学技术的高速发展
答案：C
Bill wasn't happy about the delay of the report by Jason, and________.[ ]
A. I was neither
B. neither was I
C. I was either
D. either was I
2 吨=( )千克 18000千克=( )吨 2千克100克=( )克 5 吨+10千克=( )千克
