银行承兑汇票的签发流程包括（）。
A.重空出售
B.CTA账户创建
C.银承合同创建
D.银承汇票承兑
参考答案：A, B, C, D
Physics ______ much harder than English, I think. [ ]
A. are
B. is
C. was
D. were
新生儿肺炎的护理要点是什么？
