商店运来2箱衬衫，每箱15件，每件68元，这些衬衫能卖多少钱？
15×2×68，
=30×68，
=2040（元）．
答：这些衬衫能卖2040元．
In China, people like eating some yin food ______tofu. [ ]
A. as
B. like
C. likes
D. and
简述土壤肥力的相对生态性。
