室内测定土的抗剪强度指标采用的试验方法有()
A.直剪试验
B.三轴压缩试验
C.标准贯入试验
D.十字板剪切试验
E.以上全错
参考答案:A, B
城市的职能是( )。
A.城市在国家和地区的政治、经济、文化生活中所担负的任务和作用
B.城市性质
C.对城镇政治、文化、科研等起作用
D.在经济方面的职能
If we had taken such effective measures much earlier, the river ________ so seriously now.
A.is not polluted
B.would not be polluted
C.had not been polluted
D.would not have been polluted