4000-(2580+2880÷16)
4000-(2580+2880÷16),
=4000-(2580+180),
=4000-2760,
=1240.
People say that the Englishman's home is his castle, _____ means that the home is very important and personal. [ ]
A. where
B. that
C. which
D. as
人判断声源的距离主要依靠()。
A.声波
B.感觉
C.声压
D.视觉