We are more independent on electricity than we were generations ago so a failure of supply today can have major consequences.
举一反三
- Before we move, we should _____ some of the old furniture, so that we can have more room in the new house.
- All economic questions arise because we A: want more than we can get. B: want more than we need. C: have an abundance of resources. D: have limited wants that need to be satisfied.
- In the U. S.（） A: , by using credit cards we can spend more than we have,within a certain period of time.A. but we have to pay back later more than what we owe B: and we don’t have to pay back any other money C: but we pay back a little less than what we owe D: and we must soon pay back what we owe
- We can have a decision tree that has more than two decision per node.
- If history has taught us anything, it is ____ generations to come will need that wisdom more than we can imagine. A: which B: as C: that D: what