catling5200 幼苗
共回答了18个问题采纳率:77.8% 举报
1年前
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精彩回答
The music played by Lang Lang ________ very pleasing to the ear.
7个月前
将量角器按如图所示的方式放置在三角形纸板上,使点C在半圆上.点A、B的读数分别为86°、30°,则∠ACB的大小为( )
8个月前
They were talking about ________(society) relationship when I came into the office.
10个月前
一直径d=14mm的圆杆,许用应力 [σ]=170MPa,受轴向拉力FP=2.5kN作用,试校核此杆是否满足强度条件.
1年前
证明:(sin2x)^2+2(cos2x)^2=1+(cos2x)^2
1年前