A:45∘或135∘
B:135∘
C:45∘
D:以上都不对
Have you ever listened to the song Yesterday Once More, ________ singer died in her early years?
利用数方格的方法数出下面图形的面积。(每个小方格的面积表示1平方厘米)
图①的面积是____,
图②的面积是____,
图③的面积是____。
如今,许多外国人喜欢游览北京的胡同,原因是
He turned from side to side, eyeing himself in the mirror with a serious, studied ______ that soon changed into a smile.