The key to control the symmetry axis of human body lies in( ). Its deflection and twist will harm the symmetry of human body.
A: Spine
B: Head
C: Shoulder
D: Lumbar
A: Spine
B: Head
C: Shoulder
D: Lumbar
举一反三
- The symmetry of the human body is ( ) symmetry. A: Left and right B: Up and down C: Back and forth D: Inside and outside
- Vitamins neither participate in the formation of human cells nor provide energy, and the human body requires a small amount, but it has a great effect on the human body.（）
- Fu Xi and Nv Wa are regarded as the first ancestors of the Chinese nation who are said to have a human head with a ( ). A: dragon head B: dragon body C: snake head D: snake body
- 16. If we find the genes that control the human body clock, we can perhaps slow them down and extend human life ________ a little.
- the human body is incredibly