⑴ ____
⑵ ____
⑶ ____
⑷ ____
A. The hat is beautiful. It's size 5.
B. These shoes are new and nice.
C. The T-shirt is too small.
D. I wear a red dress. It is size 13.
①两个相同DNA分子完全分开 ②核膜核仁消失 ③DNA发生倍增 ④着丝点排列在一个平面上.
如图,在正方形方格中,假定每个小正方形的边长为1厘米,三角形ABC的顶点在方格点上.