问题
单项选择题
以下物质中不会引起食物中毒的是( )。
A．植物血凝素
B．有机磷
C．甲基汞
D．3-硝基丙酸
E．大豆黄酮
答案
参考答案：E
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以下物质中不会引起食物中毒的是( )。
A．植物血凝素
B．有机磷
C．甲基汞
D．3-硝基丙酸
E．大豆黄酮
参考答案：E
| 用方框中词或短语的适当形式完成短文。 | |
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| Nowadays, more and more people learn and speak English. China may have the largest l.________ of English learners. At first, the English spoken in England was very different from today's English. It was 2.________ more on German than the English we speak 3.________ It has changed and developed 4.________ especially when cultures meet and 5.________ each other. In history, Shakespeare 6.________ a wider vocabulary than ever before. By the 19th century, Samuel Johnson's and Noah Webster's dictionaries 7.________ big changes in English spelling. The 8.________ gave a separate 9. ________ to American English spelling. Now many countries in South Asia and Africa, 10.________ India, Singapore, South Africa and so on speak English as a foreign or second language. |