问题
单项选择题 B1型题
欲了解水体是否受到粪便和医院污水的污染,应测定()
A.水生生物种群和数量的检测
B.生物体内残毒测定
C.鱼类毒性试验
D.水中大肠菌群和病原微生物监测
E.水鸟的习性改变
答案
参考答案:D
欲了解水体是否受到粪便和医院污水的污染,应测定()
A.水生生物种群和数量的检测
B.生物体内残毒测定
C.鱼类毒性试验
D.水中大肠菌群和病原微生物监测
E.水鸟的习性改变
参考答案:D
完形填空。 | |||
Hello, boys and girls. This is a 1 of my family. 2 Frank. I am twelve. I am a student in No 2 Middle School. This is my father. 3 name is Dale Brown. He is a teacher in my school. And this is my mother. She is 4 nurse (护士). She works in a hospital (在医院工作). The girl is my little sister. She's 5 years old. Who is that woman near my father? Oh, she's my 6 . She is 7 father's sister. My grandparents aren't in the photo. 8 are in the USA. I have a dog. 9 name is Bobby. I love my 10 and I love my dog, too. | |||
( )1. A. backpack ( )2. A. This is ( )3. A. His ( )4. A. an ( )5. A. fourteen ( )6. A. uncle ( )7. A. I ( )8. A. We ( )9. A. It's ( )10.A. friends | B. book B. I'm B. He's B. a B. eighteen B. aunt B. me B. They B. Its B. mother | C. photo C. It's C. Her C. the C. eight C. cousin C. my C. You C. He's C. father | D. map D. My name D. My D. / D. thirteen D. sister D. mine D. What D. She's D. family |