【简答题】We began the test yesterday, but we (make) ________ preparations long before.
【多选题】The basic procedure of international trade includes ( ).
D.
implementing contracts
【简答题】集成运放有( )端、( )端、( )端、( )端、( )端5类引出端。
【多选题】The basic procedure of an inquiry includes _____
【判断题】取得等级证书的检测机构,可以设立工地临时实验室。