“关爱生命，拥抱健康”是人类永恒的主题．下列说法科学的是（ ）
A．在白酒中添加塑化剂可提高白酒的品质
B．用地沟油烹制食品可降低成本
C．食盐加碘可防止甲状腺肿大
D．在生猪饲料中添加瘦肉精可提高瘦肉的产量
A、塑化剂对人体有害，所以不能在白酒中添加塑化剂来提高白酒的品质，故A错误；
B、地沟油中含有致癌物质，所以不能用地沟油烹制食品，故B错误；
C、碘元素是人体所需的元素，食盐加碘可防止甲状腺肿大，故C正确；
D、瘦肉精对人体有害，所以不能在生猪饲料中添加瘦肉精，故D错误．
故选：C．
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| 1. What number may you call if you and your friends want to enjoy the sunshine at the seaside? | ||||
| A. 67538293. B. 63986432. C. 64639818 | ||||
| 2. Sam wants to stay in Hunter Valley with his wife, his five - year - old daughter and his seven-year - old son. How much will it cost? | ||||
| A. $ 25. B. $ 150. C. $ 100 | ||||
| 3. David loves sports. He will take his holiday from May 7 to May 15. What activity will he probable take part in? | ||||
| A. Hiking in the mountains. B. Fishing in the country. C. Watching plants at night | ||||
| 4. Lucy is a college student. She is quite interested in science. She wants to know something about the life of plants at night. Which trip will she choose? | ||||
| A. Trip l. B. Trip 2. C. Trip 3 | ||||
| 5. Which of the following is NOT mentioned according to the four advertisements? | ||||
| A . Children couldn't take the Trip 3. B. We can see some beautiful flowers in Trip 2. C. Trip 4 is very dangerous. |