皮皮学，免费搜题
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搜题
【单选题】
目标管理的第一A.
制定高阶层领导总目标
B.
制定目标体系
C.
组织实施
D.
检查评价
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】How the sound be recorded in the computer?
A.
Sound waves are picked up by a microphone and converted to a small analog voltage, This voltage is applied to digital-to-analog converter (DAC).
B.
Sound waves are picked up by a microphone and converted to a small analog voltage, This voltage is applied to analog-to-digital converter (ADC).
【简答题】How is the sound (record) in the computer?