被除数是8，除数是2，商是4。写出除法算式是：（ ）。
8÷2= 4
Hi, Celia!（）to the United States? It was wonderful. I really enjoyed it.
A.What was your idea
B.How was your trip
C.Who went
D.How often did you travel
一板式吊耳，孔直径d=100mm，半圆弧形的边缘R=120mm，板厚d=30mm，Q235-A钢制造，受力方向与吊耳轴线重合，在焊道能满足的情况下，估算可承受（）拉力。
A.210KN
B.150KN
C.300KN
