皮皮学，免费搜题
登录
搜题
【多选题】
设速度输入下，闭环系统的稳态误差为常值，则当输入为【图片】时，系统的稳态误差 。A.
趋于某个常值
B.
幅值趋于某个常值
C.
趋于无穷大
D.
趋于频率为 2 的谐波信号
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The problem _______ you argued about yesterday has been solved.
A.
that
B.
what
C.
why
D.
for which
【简答题】It has been argued by some that gifted children should be grouped in special classes. The __1____is based on the belief that in regular classes these children are held back in their intellectual (智力的)...
【单选题】It has been argued that art does not reproduce the visible-it makes things visible-but this does not go far enough. In fact, visual art explores and reveals the brain's perceptual capabilities and the...
A.
allows abstract ideas to mutate into new and hitherto untested forms
B.
helps scientists synthesize several distinct views of the operation of the brain
C.
manifests in an observable form. the laws by which the brain functions
D.
subordinates the particular to the general, streamlining the artistic process
E.
establishes the constant and essential properties of objects and surfaces
【单选题】It has been argued that an infant under three who is cared for outside the home may suffer because of the separation from his parents. The British psychoanalyst John Bowlby maintains that separation f...
A.
should not be sent to school
B.
should be cared for outside the home
C.
will not suffer from parental separation
D.
don't mind who will look after them
【单选题】It has been argued that where schools become bureaucratized, they become bound up with the techniques and implementation of the managerial process, and may concentrate on concern with position and sel...
A.
concerns that schools deliberately neglect students
B.
the high cost of education due to bureaucracy
C.
a perception of them as self-serving and bureaucratic
D.
a misunderstanding of schools officials
【单选题】患者，男.45岁。腹泻，咳嗽，咯吐痰涎，色白清稀，舌苔白腻弦滑。用药宜首选（）
A.
苏子、白芥子
B.
瓜蒌、浙贝母
C.
半夏、天南星
D.
川贝母、天花粉
E.
白附子、白僵蚕
相关题目：