问题
单项选择题
建设项目竣工环境保护验收时，二氧化硫、氮氧化物、颗粒物、氟化物的监控点设在无组织排放源（）浓度最高点，相对应的参照点设在排放源（）。
A.上风向2～50m下风向2～50m
B.下风向2～50m上风向2～50m
C.上风向10～50m下风向10～50m
D.下风向10～50m上风向10～50m
答案
参考答案：B
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建设项目竣工环境保护验收时，二氧化硫、氮氧化物、颗粒物、氟化物的监控点设在无组织排放源（）浓度最高点，相对应的参照点设在排放源（）。
A.上风向2～50m下风向2～50m
B.下风向2～50m上风向2～50m
C.上风向10～50m下风向10～50m
D.下风向10～50m上风向10～50m
参考答案：B
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| Hello, I'm John. It's 8:00 in the morning. It's time for breakfast. I can drink some milk. It's 9:00. It's time for English class. I can read and write. It's 11:00. It's time for lunch. I can have some chicken. It's 2:00 in the afternoon. It's time for music class. I can sing and dance. It's 4:00. It's time for P. E. class. I can jump and run. It's 6:00 in the evening. It's time for dinner. I can eat some rice.
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