B细胞的阴性选择发生于()
A.早期祖B细胞
B.晚期祖B细胞
C.不成熟B细胞
D.成熟B细胞
E.浆细胞
参考答案:C
涉及库存现金与银行存款相互划转的业务应编制的记账凭证有()。
A.现金收款凭证
B.现金付款凭证
C.银行存款收款凭证
D.银行存款付款凭证
She had just________the shell of the hard-boiled egg and was starting to peel it off.
A.snapped
B.cracked
C.fractured
D.burst