CDFI检查时造成彩色信号过少或缺失的原因是（） A.多普勒超声衰_爱下问搜题

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问题单项选择题

CDFI检查时造成彩色信号过少或缺失的原因是（）

A.多普勒超声衰减伪像

B.厂商设置的"彩色优先"

C.快速伪像

D.闪烁伪像

E.频谱滤波设置过低

答案

参考答案：A

选择题

____, the little girl can help her mother with some housework. [ ]

A. Young as she is

B. Young as is she

C. As she is young

D. As is she young

问答题简答题

住宅楼防火注意事项有哪些？