You can talk with food in your mouth.
查看答案
Things that are not eaten like bones should be put on the table when you are having dinner on some formal occasions.
A. 对
B. 错
If you are invited to a dinner party, you’d better not do anything until the host does it first.
A. 对
B. 错
Things that are not eaten like bones should be put on the plate.
A. 对
B. 错
强度是指( )
A. 材料抵抗变形的能力
B. 材料抵抗破坏的能力
C. 材料保持平衡的能力
D. 材料承受力的能力