In no other country in the world can you find such plants as this one.

In no other country in the world can you find such plants as this one.

查看答案

This place has plentiful material resources.

This place has plentiful material resources.

查看答案

煤矿井下造成短路的主要原因有()A.绝缘击穿B.绝缘电阻降低C.机械损伤D.电压过高E.误操作

煤矿井下造成短路的主要原因有()A.绝缘击穿B.绝缘电阻降低C.机械损伤D.电压过高E.误操作

查看答案

We must take some measures to control the pollution.

We must take some measures to control the pollution.

查看答案