They _______ tools and machines to help them in their work.
A: created
B: shifted
C: paved
D: invented
A: created
B: shifted
C: paved
D: invented
举一反三
- Human ingenuity was initially demonstrated in A: the use of machines to produce science fiction. B: the wide use of machines in manufacturing industry. C: the invention of tools for difficult and dangerous work. D: the elite's cunning tackling of dangerous and boring work.
- 34. The path is with concrete slabs. A: made B: created C: consisted D: paved
- （） all the help from machines, farming still requires hard work and long hours. A: With B: Without C: Although D: But for
- Computers as we know them are tools which can be used to help solve a wide range of problems.
- What is one of the benefits of indifferent relationships? A: They provide fun at work. B: They help control emotions. C: They help resolve differences. D: They improve work efficiency.