Which of the following () may not be interested in science and technology
A: The substance facing a resource shortage
B: The substance with an increasing uses
C: The substance whose anthropogenic flow is closely related to other substances
D: None of the above
A: The substance facing a resource shortage
B: The substance with an increasing uses
C: The substance whose anthropogenic flow is closely related to other substances
D: None of the above
举一反三
- Which of the following substances is not amphoteric substance? A: H2O B: HCO3- C: H2PO4- D: CO32-
- In the crystals of the following substances, the substance with ionic bonds is ( ). A: SO2 B: SiO2 C: NaCl D: H2O
- Which one of the following suffixes does NOT refer to substance? （ ）.
- The physical properties are those properties of a substance that can be observed with changing the substance into other substances.
- The physical properties are those properties of a substance that can be observed with changing the substance into other substances. A: 正确 B: 错误