Linear distributed loadings produce a（）having a magnitude equal to the（）, and having a location that passes through the（）
A. resultant force, external force, center of the area
B. force, external force, centroid of this area
C. resultant force, area under the load diagram, centroid of this area
D. resultant force, external force, centroid of this area
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Mechanics of materials is a study of the relationship between the（）applied to a body and the（）and（）caused by the（）within the body
A. loads, stress, strain, loads
B. external loads, stress, strain, internal loads
C. internal loads, deformation, force, external loads
D. external loads, force, deformation, internal loads
Which one is the second floor of the food pagoda（）
A. Live stocks
B. Milk and related products
C. Vegetables and fruits
D. Eggs
What are characteristics of a healthy diet（）
Adequacy
B. Calorie control
C. Moderation
D. Balance
E. Variety
What are the Soylent’s limitations when it compares to our basic foods in the following options（）
A. Social interaction
B. Psychological
C. Phytochemicals
Digestive system
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