环境预测的主要内容
参考答案：
社会发展和经济发展预测，环境容量和资源预测，环境污染预测，环境治理和投资预测，生态环境预测
The author of the article believes that it is the test system, _____ teachers, that is responsible for the heavy
burden of the middle school students nowadays. [ ]
A. other than
B. or rather
C. rather than
D. more than
病虫害发生严重会使烟叶出现（）等．
A.光滑
B.烤红
C.杂色或残伤
D.含青
