《物权法》规定，担保合同是主债权债务合同的。 ( )
参考答案：对
The people who have _____ the club have a chance to ______ the opening ceremony.
A．joined ; attend
B．taken part in ; join
C．taken part in ; attend
D．attended ; take part in
轧制生产过程中，开始轧制第一根钢到开始轧制第二根钢的这段时间称（）。
