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【单选题】
外加激励为零,仅由系统初始状态引起的响应是A.
零输入响应
B.
零状态响应
C.
冲激响应
D.
阶跃响应
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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】When you are almost done with your soup and want to get at the last little bit, how should you do this?
A.
Keep spooning up as much as you can, then stop eating
B.
Tip the bowl slightly, then spoon up the last bit
C.
Tip the bowl and sip from the side
D.
Leave the last little bit; it's poor etiquette to get every last drop
【简答题】在晴朗的白天拍摄时,数码相机设定的白平衡最好为?A. 5200K