大事年表题。
— Sorry for being late again.
— here on time next time, or you'll be punished.
—Whose shorts are these? —They are ______.
在人的个体发育过裎中，精子和卵细胞结合成受精卵的部位是（ ）
如果两个三角形全等，那么下列结论不正确的是（）
