【多选题】物业服务企业在装修管理过程中的职责和职权是( )。
【单选题】Several months later, he found his deskmate very difficult _______.
D.
to be gotten along with
【多选题】蜗轮蜗杆正确啮合的条件是:蜗杆 [填空(1)] 和 [填空(2)] 应分别等于蜗轮[填空31)]和 [填空(4)] 。
【单选题】Foreign currency ___________ are forward transactions with standard contract sizes and maturity dates.
【单选题】________ are in essence an insurance contract against the default of one or more borrowers.
D.
Collateralized debt obligations