只要商品的数量在增加,边际效用大于零,消费者得到的总效用就一定在增加。( )
A. 对
B. 错
If we'd all work together, I think we could ________ (实现) our goal.
Don't be _________ (荒谬的)! You can't pay £50 for a T-shirt!
There was widespread __________ (批评) of the government's handling of the disaster.