PCM将模拟信号转换为数字信号的步骤有抽样、量化和()。
A.编码
B.调制
C.解调
参考答案:A
It will be a big help if you go to the store and get what we need for dinner.________, I'll set the table.
A.As a result
B.On the whole
C.In the meanwhile
D.As a matter of fact
患者症见热少寒多,口不渴。胸脘痞闷,神疲体倦,苔白腻,脉弦。治方宜选()
A.柴胡截疟饮
B.截疟七宝饮
C.柴胡桂枝干姜汤
D.平胃散
E.甘露消毒丹