A商品主要由甲、乙、丙、丁四个厂家供应。假如甲厂的劳动生产率比丁厂低,乙厂的个别劳动时间比丙厂长,丁厂的劳动生产率比丙厂稍高,则下列说法正确的是( )①A商品在市场上,甲厂价格最低,乙厂价格最高②在市场上卖同样数量的A商品,甲厂获利最大,乙厂获利最小③在市场上卖同样数量的A商品,丙、丁两厂获利最大,甲、乙两厂获利最小④丁厂生产的A商品的降价空间最大
____ twice, the postman refused to deliver our letters unless we changed our dog
The biggest whale is ___ blue whale, which grows to be about 29 meters long-the height of ___ 9-story building.
John was given the same suitcase his father and grandfather ___ with them to school.
At first he hated the new job but decided to give himself a few months to seeit got any better.
When I talked with my grandma on the phone, she sounded weak, but by the time we ___ up, her voice had been full of life