Answer:
The correct answer is - obsessive-compulsive disorder.
Explanation:
Obsessive-compulsive disorder is compulsive or repetitive behavior in an individual because of unreasonable fear or thoughts. It is a long-lasting chronic disorder that is occurring due to excessive thought.
Lee is having excessive thought about calculation mistakes in grading students that are leading to checking papers again and again which is characterized by this behavior as obsessive-compulsive disorder.
Thus, the correct answer is - obsessive-compulsive disorder.
 
        
             
        
        
        
Answer:
Explanation:
What we call the three E's are the important categories that relate to essential nutrition of humans and those are eat, exercise, and eliminate. PDIs are the set of measures that we use to evaluate the quality of pediatric care. The way that the PDIs fit inside the three E's is that they ensure a child gets a good and balanced diet for the development of that child. A child needs exercise in order to develop muscles inside the body. And it also helps us regulate the food the child eats so that we can remove some food that may harm or hinder a child's development. 
 
        
             
        
        
        
Drugs and supplements are similar in that both have an effect on the nervous system and that both are psychoactive substances. They are different in that drugs are often necessary to help someone overcome an illness, while supplements are optional and not necessary.
        
                    
             
        
        
        
Answer:
Delimer
Explanation:
Delimer is a high-quality solvent for general and re-circulating lime removal. Removes oxidation, urine salts, light rust, lime, and calcium and iron deposits from bathroom surfaces.
 
        
             
        
        
        
Electroencephalogram (EEG)
Magnetic Resonance 
 Positron emission tomography (PET)
Arteriogram (also called an angiogram).
Spinal tap
Neurosonography
Ultrasound