A：课桌高度约为80 cm
B：考场内的气温约为50℃
C：一份理化试卷的质量约为80 g
D：一块橡皮从课桌掉到地上所用时间约为5 s
12÷3=4，表示把____个东西，每____个一份，分成了____份。
—Nearly 10 years. That's _______ this book is so classical and famous.
—I haven't had it yet. However, it good.
下列说法正确的是（ ）
