切实树立资源节约和环境治理的( )和责任感。
A.紧迫感B.荣辱观C.上进观D.使命感
参考答案:A
解析:切实树立资源节约和环境治理的紧迫感和责任感。
146. What a pity it is that Bob ______ the habit of smoking at such an early age!
A.developed into
B.slid into
C.switched into
D.slipped into
在额定状态下,异步电动机的较差率一般为2%一5%。