Joe Brown had a shop. He sold(卖) meat in his shop . One Thursday a woman came into his shop at five to one . “I’m sorry I’m late,” she said. “I need some more meat for my dinner tonight.” Joe had only one piece of meat in his shop. He took it out of the fridge and said, “This is＄6.50.”  “That piece is too small.” the woman said, “haven’t you for anything bigger?” Joe went into the room behind his shop, put the piece of meat into the fridge, took it out again and closed the door with lots of noise. Then he brought the piece of meat to the woman and said, “This piece of meat is bigger and more expensive. It’s ＄8.75.” “Good,” the woman said with a smile,“give me both of them.”

2011年4月26日，我国重新启动“南澳1号”打捞工作，又一批沉睡四百多年的明代文物将重见天日，考古人员（包括潜水服）在水面下继续下潜到海底的过程中，受到海水的压强____，浮力____（填“增大”“减小”或“不变”）

一朵花的最主要部分是____ ，种子的最主要部分是____ ．