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【简答题】
采用粉末活性炭应急处理技术吸附水源突发性污染事故中的硝基苯。通过试验已得到吸附等温线为: q =0.3994 C 0.8322 (式中: q 为吸附容量,mg/(mg炭); C 为硝基苯平衡浓度,(mg/L)。 1 水源水硝基苯浓度0.008 mg/L,要求吸附后硝基苯浓度基本低于检出限(<0.0005 mg/L),计算所需粉末炭的投加量; 2 水源水硝基苯浓度 C o =0.050 mg/L(硝基苯的标准限值为0.017 mg/L,该值约超标2倍),采用粉末炭投加量15 mg/L,求吸附后水中的硝基苯浓度。
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【简答题】所谓学生心理发展是学生个体心理所发生的积极的心理变化,主要包括______、______、______三个方面。
【单选题】Why did Nick and Jackie go to lunch?
A.
Jackie was hungry because she skipped breakfast.
B.
Jackie prefers to do business over lunch.
C.
Jackie's company owns the restaurant.
【多选题】所谓学生心理发展是学生个体心理所发生的积极的心理变化,主要包括 ( )三个方面。
A.
学生的认知过程的发展
B.
情感和意志发展
C.
体能发展
D.
个性发展
【判断题】药品生产和质量管理的基本准则是药品生产质量管理规范。
A.
正确
B.
错误
【单选题】Dean was sitting at the table when Jackie arrived.
A.
Dean came to the table after Jackie.
B.
Dean left the table before Jackie.
C.
Jackie arrived after Dean sat down.
【判断题】自动变速器中的电磁阀都是通断式电磁阀。
A.
正确
B.
错误
【判断题】所谓学生心理发展是学生个体心理所发生的积极的心理变化,主要包括学生的认识发展、情感和意志发展、个性发展三个方面。()
A.
正确
B.
错误
【单选题】What does Dean tell Jackie?
A.
Nick knows that Dean and Jackie tricked him.
B.
Nick is listening to Dean and Jackie right now.
C.
Nick still doesn't know who Jackie is.
【单选题】The word 'subjects' (first sentence, last paragraph) refers to ______.
A.
the performance tests used in the study of sleep deficit
B.
special branches of knowledge that are being studied
C.
people whose behaviors or reactions are being studied
D.
the psychological consequences of sleep deficit
【单选题】The word "elude" in the second paragraph probably means ______.
A.
help                              
B.
tell
C.
confuse                            
D.
answer
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