50kg/m钢轨9号普通单开道岔全长()mm。
A、37907
B、28848
C、36815
D、29569
参考答案:B
The rainy season is coming and let’s make full use of the ________ days to dry whatever is needed to dry before the next dry season.
A.few last sunny
B.last few sunny
C.last sunny few
D.sunny last few
证券投资基金反映的是( )关系。
A.产权 B.所有权 C.债权债务 D.委托代理