对融资方违约的交易，中国证券登记结算有限责任公司上海分公司对原冻结的标的国债予以解冻，解冻国债在（）日可用。

A.R

B.R+1

C.R+2

D.R+3

—What should we pay more attention to if we go north in winter, Mum?

—Nothing much. Take warm clothes_________

the weather is cold.

A．as long as

B．now that

C．if

D．in case