It was not until the 1990s ______ industrial robots became really cheap， and therefore a possible option.
举一反三
- It is not rare in that people in their fifties are going to university for furthereducation.( A: 1990s B: the 1990 C: 1990's D: the 1990s
- 是1990s还是1990’s
- An option that gives the option buyer the right to buy the commodity or financial instrument specified in the contact at the exercise price is called: () A: an American option. B: a European option. C: a call option. D: a put option.
- Europe's earlier industrial growth was _____ by the availability of key resources,abundant and cheap labor,coal,iron ore,etc.
- The market for industrial robots will be worth $5.73 billion this year.