When did people begin to realize the value of salt
A: When they used salt to melt snow.
B: When they started to preserve food with salt.
C: After they found animals licking salt.
D: After they found salt's magical powers.
A: When they used salt to melt snow.
B: When they started to preserve food with salt.
C: After they found animals licking salt.
D: After they found salt's magical powers.
举一反三
- 在“Please pass me the salt.”这个句子中，“the salt”是
- When KMnO4 is used to determine the content of calcium in calcium salt, the indicator used is methyl orange.
- Which food components provide little nutritional value and can be harmful when we eat too much? A: salt, sugar, alcohol B: sugar, saturated fat, whole grains C: salt, cholesterol, fiber D: I don’t know
- ____<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
- When KMnO4 is used to determine the content of calcium in calcium salt, the indicator used is methyl orange. A: 正确 B: 错误