选择题:电力系统的稳定按性质可分为功角稳定、电压稳定和频率稳定三类( )。(本题1.0分) A、 错误 B 题目分类:河南工学院-电气工程概论 题目类型:选择题 查看权限:VIP 题目内容: 电力系统的稳定按性质可分为功角稳定、电压稳定和频率稳定三类( )。 (本题1.0分) A、 错误 B、 正确 参考答案:
45.William has cut his smoking_____to five cigaret 45.William has cut his smoking_____to five cigarettes a day. (A)down(B)shor 分类:河南工学院-电气工程概论 题型:选择题 查看答案
Since the reform, the country’s economy has been f Since the reform, the country’s economy has been fairly _______. (A)healthfu 分类:河南工学院-电气工程概论 题型:选择题 查看答案
It was _____ that we went for a picnic in the coun It was _____ that we went for a picnic in the country. (A)such nic e a day(B) 分类:河南工学院-电气工程概论 题型:选择题 查看答案
从社会角度看,没有人遭受损失的交易称为( )(A)互惠(B)互利(C)互益(D)互助 从社会角度看,没有人遭受损失的交易称为( )(A)互惠(B)互利(C)互益(D)互助 分类:河南工学院-电气工程概论 题型:选择题 查看答案