气瓶充装单位应当负责气瓶的()工作
A、维护
B、保养
C、颜色标志的涂敷
D、送瓶
参考答案:A, B, C
Ann often _____ lunch at home with her parents.[ ]
A. have
B. has
C. eat
D. eating
正常类信贷资产是指借款人能够履行合同,没有足够理由怀疑本息不能按时足额偿还的信贷资产。()