"These tools" in the last sentence of the passage means ________.
A: weather forecast
B: knowledge
C: mathematics and physics
D: economic advantages of various kinds
A: weather forecast
B: knowledge
C: mathematics and physics
D: economic advantages of various kinds
举一反三
- The word "it" in the last sentence of this passage means ______. A: the water B: the mountain C: the sea D: Japan
- The teachers mainly teach _______ in universities. A: Biology and Mathematics B: Biology and Physics C: Mathematics and Physics D: Physics and Chemistry
- He makes his students ________ knowledge through various kinds of interesting activities.
- In the last sentence of the passage, the phrase "better off" means ______. A: in a worse condition B: wealthy C: doing more than expected D: in a better condition
- By the first sentence of the passage the author means that ________.