A:approximately
B:incredibly
C:probably
D:absolutely
①洋葱根尖成熟区表皮细胞 ②蛙的红细胞
③人体浆细胞 ④乳酸菌细胞
⑤酵母菌细胞.
____×6<36 93÷7>____
168÷6>____ 5×____<156