上海证券交易所和深圳证券交易所都允许托管银行就其客户达成的交易作为结算参与人承担交收责任直接与结算机构进行交收操作。 ( )
参考答案：错
If you don't know how to spell new words, ____ in the dictionary. [ ]
A. look up them
B. look for them
C. look them up
D. look them for
今年第21个世界无烟日的主题是什麽？
