肝豆状核变性引起组织病理改变的原因是_____中毒,其中毒的机制为________、________。
参考答案:铜;过量铜可抑制重要蛋白质的功能;过量铜具有氧化毒性作用
A.弹簧a下端受的拉力为5N,b下端受的拉力为5N
B.弹簧a下端受的拉力为4N,b下端受的拉力为6N
C.弹簧a的长度变为6.4cm,b的长度变为4.3cm
D.弹簧a的长度变为7cm,b的长度变为4.5 cm
根据英语翻译以下短语并完成句子。
1. worse off _____
2. well off _____
3. better off _____
4. well-to-do life/a better-off life _____
5. well-off family _____
6. She was____ for a while after her husband died.
她丈夫去世后,她好长一段时间穷困聊倒.
7. In the past, they were____ to afford a holiday.
过去他们很贫困,根本谈不上度假.
8. We shouldn't complain about being poor-many families are _____.
我们不应该因为穷而叫苦连天- 许多人的家境更糟.
9. He is____than I am.
他的日子比我宽裕得多.
10. Though he is always wearing old clothes, he is____ as you think.
尽管他老是穿着旧衣服,但他并不如你想的那么穷.
11. In fact most people are____they were five years ago.
事实上多数的人要比五年前富裕.