我们炒菜时常用哪种材质的锅，具有补充微量元素的效果？
参考答案：
我们炒菜时常用铁锅，具有补充微量元素的效果。
In this school, most students prefer taking pains in their studies to_________with a better education.
A．equip
B．be equipped
C．equipping
D．being equipped
影响硫铵质量的因素有哪些？
