问题
填空题
循环水场异养菌的控制指标为≤（）个／mL。
答案
参考答案：1×l05
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循环水场异养菌的控制指标为≤（）个／mL。
参考答案：1×l05
| 阅读理解。 |
| Mr Green is from England. He and his wife (妻子) are teachers. They teach English in Beijing. They have a boy and a girl. They are Jack and Mary. Jack is a student, but Mary is not. She is only four. They have two bikes. One is big, and the other is small. The big one is for Jack. The small one is for Mary. On Sundays, sometimes they are at home, sometimes they go to the park. The Greens like China. They have a lot of Chinese friends. |
| 1. —Where are the Greens now? —They are in ________. |
| A. China B. America C. England D. Japan |
| 2. —What do Mr and Mrs Green do? —They ________. |
| A. study Chinese B. teach English C. look after Jack and Mary D. go to the park |
| 3. —What do Jack and Mary have? —They have_________. |
| A. cars B. watches C. clocks D. bikes |
| 4. On Sundays, they are sometimes __________. |
| A. at school B. in the classroom C. at home D. on the bike |
| 5. Mr and Mrs Green __________. |
| A. have many Japanese friends B. like China very much C. look the same D. don't know Chines |