美国管理专家艾伦•莱金提出的“ABC时间管理法”将领导事务分为A、B、C三类,其A类是指()
A.最基本的事情
B.最重要的事情
C.最琐碎的事情
D.最简单的事情
参考答案:B
He didn't buy the book because he was interested in poetry.
A.He didn't buy the book because he was not interested in poetry.
B.He bought the book, but it is not because he was interested in poetry.
C.He bought the book because he was interested in poetry.
D.He bought the book because he was not interested in poetry.
用高强度等级水泥配制低强度等级混凝土,不但能减少水泥的用量,混凝土的强度能得到保证,而且混凝土的耐久性也会变好。( )