消费者的消费受相关商品价格变动的影响,如果A商品和B商品的关系如下表,那么表格中反应B商品需求变化的M、N分别应该是( )
A.需求量增加 需求量减少 B.需求量增加 需求量增加C.需求量减少 需求量增加 D.需求量减少 需求量减少
To the parents’ worry, some middle school students are ______ computer games and completely forget their studies.
It was in 1969 ______ two Americans went to the moon by spaceship.
My mother insisted that I _____to school on foot.
Since Margot found it difficult to settle in a new place, she felt ______ that the family had to move.
The engine of the ship was out of order and the bad weather ______ the helplessness of the crew at sea.