Kwashiorkor is mainly caused by inadequate protein intake.

A．Kwashiorkor的典型症状是消瘦，Marasrnus的典型症状是水肿

B．Kwashiorkor的发病原因主要是缺乏能量，而蛋白质供应充足

C．Marasmus的发病原因主要是缺乏蛋白质，而能量供应充足

D．Kwashiorkor的发病原因是由于能量摄入基本满足而蛋白质不足，Marasmus的发病原因是由于蛋白质和能量均摄入不足

E．不存在又水肿又消瘦的PEM患者

A. 热能

B. 蛋白质和热能

C. 蛋白质

D. 碳水化合物

A、It takes in and absorbs oxygen through the respiratory system.

B、The digestive system converts digestible food to energy and disposes of the rest.

C、The skeletal-muscular system gives form to the body.

D、It is amazing how well each system functions and coordinates with other systems to enable humans to live and reproduce.

A、Bones are united by joints and held together by ligaments.

B、They run up and down the back and protect the spinal cord, where many of the major nerves are located.

C、The body is supported and given shape by bones.

D、The red marrow produces the yellow blood cells used throughout the body to transport oxygen, while the red marrow consists of fat cells.

A、The blood is pumped into the right ventricle and to the pulmonary artery to be sent to the lungs where carbon dioxide is removed and oxygen is added.

B、During the systole, oxygenated is pumped out of the right ventricle into the aorta and from there through the veins to all organs of the body.

C、There are four chambers which are made up of several layers of smooth muscles.

D、The heart is roughly the size of the your fist.

A、子宫

B、腹部

C、腹腔

D、卵巢