基托发生变形的原因不包括
A．装盒压力过大
B．装盒压力不足
C．基托厚薄差异过大
D．冷却过快
E．升温过快
参考答案：B
The boy asked his father .
A．where it happens
B．when did it happen
C．what did it happen
D．how it happened
请用不超过200字的篇幅提出解决给定资料反映问题的方案。要有条理地说明，要体现针对性和可操作性。
