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【简答题】.Road transports are mainly linked to light industries where rapid movements of freight in small (批量) are the norm.
【多选题】How does blood transport oxygen, metabolites, and hormones?
A.
Blood mediates the metabolic interactions among all tissues.
B.
It transports nutrients from the small intestine to the liver and from the liver and adipose tissue to other organs; it also transports waste products from extrahepatic tissues to the liver for processing and to the kidneys for excretion.
C.
Oxygen moves in the bloodstream from the lungs to the tissues, and CO 2 generated by tissue respiration returns via the bloodstream to the lungs for exhalation.
D.
Blood also carries hormonal signals from one tissue to another. In its role as signal carrier, the circulatory system resembles the nervous system: both regulate and integrate the activities of different organs.
【简答题】Some mechanical flight control systems use servo tabs that provide aerodynamic assistance. Servo tabs are small suces hinged to the control suces. The flight control mechanisms move these tabs, ...
【单选题】( ) transports small molecules.
A.
ABC transporters
B.
P-type pump
C.
F-type pump
D.
V-type pump
【简答题】把下列 句子改写成排比句: 音乐家常把灵感变为跳跃的音符,文学家呢,他们优美的辞章往往缘于灵感,至于画家,他们完满的构图也常常与灵感相关,而一般人的灵感,则常是霎时的喜悦。
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