Texas and Louisiana ______ the nation in the production of sulfur and are also important salt mining states. A: lead B: take C: contribute D: offer

In the southwestern part of the United States _________ built in the last century. A: they are many abandoned mining towns B: where there are many abandoned mining towns C: are many abandoned mining towns D: many abandoned mining towns are

In the southwestern part of the United States ______ built in the last century. A: there are many abandoned mining towns B: were many abandoned mining towns C: where there are many abandoned mining towns D: where are many abandoned mining towns

____<br/>are not leached out of soil, reclamation procedures are needed to<br/>restore the land’s productivity. A: For concentrations of salt B: Salt concentrations that C: If salt concentrations D: With concentrations of salt

Data Mining：

“ Take something with a grain of salt” means “add some salt”.

salt

he main production links of open-pit mining production technology include rock preparation, mining and loading, transportation and .

Texas and Louisiana______the nation in the production of sulfur and are also important salt-mining states. A: lead B: take C: contribute D: offer

What is the main message of this text A: That the salt scare is not justified. B: That the orgin of hypertension is now found. C: That the moderate use of salt is recommended. D: That salt consumption is to be promoted