普通土的现场鉴别方法为:挖掘。
参考答案:对
解析:普通土的现场鉴别方法为:挖掘。
They have just cleaned the windows, so the room looks ______.[ ]
A. brightest
B. least bright
C. less bright
D. much brighter
雹为(()的球状、锥状或不规则的固态降水,内核常(),外包透明冰层或层层相间,大的着地反跳,坚硬()。