举一反三
- Fuel is (any) substance or material (that reacts) chemically (with) another substance or material to produce (hot). A: any B: that reacts C: with D: hot
- Which material can be used for the burs?
- Plastics is a kind of ______ which is widely used in industry. A: mass B: substance C: matter D: material
- Which material can be used for the drill handle?
- A chemical is any aspect of a substance which is only seen by means of a chemical reaction (反应).
内容
- 0
The flexibility of the compression bar intensively reflects which factors of the compression bar will affect the critical stress. A: Length, constraints, section size and shape B: Material, length and constraints C: Material, constraints, section size and shape D: Material, length, section size and shape
- 1
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
- 2
A is any form to which affixes of any kind can be added.
- 3
Which of the following ( ) is not helpful for the protection of scarce resources A: Material substitute B: Increment of material uses C: Selling services instead of products D: Using eco-materials
- 4
Can you show me any evidence _______ he is a thief? A: which B: in which C: in that D: that