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【简答题】
写作。 1. 大家好。我叫西蒙。 2. 我出生在上海。 3. 我带眼镜。 4. 我喜欢打电脑游戏。 5. 我乐于助人而且有礼貌。 _____________________________________________________ ________________________________________________________
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【单选题】Which of these ions is used to cotransport amino acids, glucose, and other solutes through the apical membrane of nephron epithelial cells?
A.
K +
B.
Na +
C.
Cl -
D.
Ca 2+
E.
Mg 2+
【简答题】宝石光谱的鉴定意义 :
【多选题】Which of the following statements about enzyme cofactors are correct?
A.
Many of the reactions within these five classes are facilitated by cofactors, in the form of coenzymes and metal ions (vitamin B 12 , S–adenosylmethionine, folate, nicotinamide, and Fe 2+ are some examples).
B.
Cofactors bind to enzymes—in some cases reversibly, in other cases almost irreversibly—and give them the capacity to promote a particular kind of chemistry.
C.
Most cofactors participate in a narrow range of closely related reactions.
D.
The cofactors provide another way to organize the study of biochemical processes, given that the reactions facilitated by a given cofactor generally are mechanistically related.
【单选题】Which of these ingredients in saliva is responsible for activating salivary amylase?
A.
mucus
B.
phosphate ions
C.
chloride ions
D.
urea
【简答题】Explain the following professional terms. 1) anionic polymerization 2) cationic polymerization 3) coordination polymerization 4) live polymerization 2. In anionic polymerization, from nonpolar to...
【简答题】广义的解剖学包括 、 、 和 。一般所说的解剖学是指 。
【简答题】Research has shown that certain minerals are required by plants for normal growth and development. The soil is the source of these minerals, which are absorbed by the plant with the water from the soi...
【单选题】党的十九大报告指出,五年来,我国经济保持中高速增长,在世界主要国家中名列前茅,国内生产总值从五十四万亿元增长到八十万亿元,稳居世界( ),对世界经济增长贡献率超过百分之三十。A 第一
A.
第二
B.
第三
C.
第四
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