A young mother thought that it was very wrong to waste any food when there were so many hungry people in the world. One evening, she was giving her small daughter her tea before putting her to bed. First she gave her a piece of bread and butter, but the child said that she did not want it like that. She asked for some jam on her bread as well.
Her mother looked at her for a few seconds and then said, “When I was a small girl like you. I was always given either bread and butter, or bread and jam, but never bread with butter and jam.”
Lucy looked at her mother for a few moments with pity in her eyes and said to her kindly, “Aren’t you pleased to live a happy life this now?”
小题1:Lucy’s mother thought it was wrong to waste food because .
A．the food was delicious
B．it was hard to get food
C．there were so many hungry people in the world
D．the food was little to eat小题2:Lucy wanted to eat .
A．tea and bread
B．the bread with butter
C．the bread with jam
D．the bread with butter and jam小题3:When she was young, Lucy’s mother could only eat .
A．both bread with butter and bread with jam
B．either bread and butter or bread and jam
C．bread and butter
D．bread and jam小题4:Lucy felt about this at her mother’s words.
A．very sad
B．sorry
C．pity
D．worried小题5:Lucy thought her mother should feel happy because .
A．she had come to live today’s happy life
B．they needn’t eat bread with butter and jam
C．they could eat bread and butter
D．they couldn’t eat bread with butter and jam
（钍）核衰变为
Pa（镤）核时，衰变前Th核质量等于衰变后Pa核与
粒子的总质量