工程方案选择的基本要求包括()。
A.满足生产使用功能要求
B.适应已选定的场址(线路走向)
C.符合工程标准规范要求
D.环境条件良好
E.经济合理
参考答案:A, B, C, E
He has a lot of homework______.[ ]
A. do
B. doing
C. to do
D. does
Recent studies have identified four major global environmental risks; acid rain, ozone depletion, deforestation and the greenhouse effect.
A.recognized
B.proved
C.got rid of
D.multiplied