到1956年底，国家基本上完成了对农业、手工业和资本主义工商业的社会主义改造。[ ]
√。
I wanted to know ______ 1,600 words as soon as possible. [ ]
A. how can they learn
B. how could they learn
C. how they can learn
D. how they could learn
办理银行承兑汇票贴现业务必须按有关规定向承兑银行进行查询、核实汇票的真实性。
