An opaque material is （）
A: a material that can be seen through
B: a translucent(半透明的) material
C: a material that can not be seen through
D: a lucent material
A: a material that can be seen through
B: a translucent(半透明的) material
C: a material that can not be seen through
D: a lucent material
举一反三
- 中国大学MOOC: The quantity of material in the material purchases budget is greater than the inferred from quantity of material in the material usage budget. Which of the following statements can be this situation?
- This kind of material can
- The material flow can be divided into the following ( ) two categories according to whether the material flow is mainly caused by human activity A: Material biogeochemical flow and its anthropogenic flow B: Material flowing with the atmosphere and with the water body C: Material industrial and agricultural flows D: Material industry flow and consumption flow
- How to determine toughness of a material through Stress-Strain curve?
- Which material can be used for the burs?