脉冲编码调制(PCM)通信系统功能包括:()
A.采样
B.量化
C.编码
D.解码
参考答案:A, B, C, D
NAP活性明显增高见于
A.慢粒白血病慢性期
B.急淋白血病缓解期
C.恶性淋巴瘤Ⅳ期
D.类白血病反应
E.多发性骨髓瘤
We have sent an order slip to all that we have reason to believe are interested in our books.
A.who are believed by us
B.with who we have reason to believe
C.who we have reason to believe
D.with whom we believe