本题目来源于试卷: Thermal Expansion，类别为 美国物理杯赛(Physics Bowl)
[单选题]
01.15: A rectangular piece of metal 3 cm h 2dx+g+3n s ja)f dmvu)ttx55eigh by 6 cm kb fai*5nw,)5(ydax uwide has a hole cut in its ce ) fb y a(,a5*kxiuwd5nnter 1cm high by 4 cm wide as shown in the diagram at right. As the metal is warmed from $0^{\circ}C$ to $100^{\circ}C$, what will happen to the dimensions of the hole?
A. both height and width will increase
B. both height and width will decrease
C. both height and width will remain unchanged
D. height will decrease while width will increase
E. height will increase while width will decrease
参考答案: A
本题详细解析:
暂无
| 
