引起氰苷食物中毒的食物是()
A.葵花子
B.榛子
C.核桃仁
D.苦杏仁
E.腰果
参考答案:D
解析:苦杏仁、桃仁、李子仁、枇杷仁、樱桃仁、木薯等可引起氰苷食物中毒。
根据汉语提示完成句子。
1. It's cold in winter. We can ______ (堆雪人) in winter.
2. We usually ______ (呆在家里) on Sundays.
3. The teachers ______ ( 对……友好) to the children. And they are happy.
4. What are you ______ (听……)?
5. The rain ______ (持续) five days this month.
6. Do you often ______ (休息一小会儿) after lunch?
7. —______ (多久) do you go home? —______ (每月两次).
8. He waited for me ______ (一会儿).
9. They are watching TV ______ (此刻).
10. The Post Office is ______ (在……的中心) the city.
合理的选择缓冲材料的目的是降低流通成本,因此缓冲包装技术应考虑其()。
A.酸碱度
B.吸湿性
C.加工性
D.经济性