A:以国内市场为主
B:以海外市场为主
C:把工厂建在国外
D:进口原材料,出口产品
可证明一瓶硝酸钾溶液是饱和溶液的方法是 ( )
One soldier was killed and three others were ____ when their tank was hit by a rocket. (wound)
请用上述物质的数字序号填空: