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【单选题】
病人,男35岁,持续高热在在对病人的护理措施中不妥的是A.
密切观察病情的变化
B.
测体温每天两次
C.
冰袋冷敷头部
D.
口腔护理
E.
鼓励多饮水
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【简答题】宝石光谱的鉴定意义 :
【简答题】下图是四线制道岔控制电路(室内部分),根据该电路回答问题: (1) 由图可知, 1DQJ 、 2DQJ 和 DBJ 分别是什么类型的继电器? (2) 在 1DQJ 的 3-4 线圈上接有 SJ 和 CA ,其分别起什么作用? DBJ 和 FBJ 都并联有电容 C ,电容 C 起何作用? (3) 在图上用粗线画出单操道岔到反位时, 1DQJ 、 2DQJ 和 FBJ 的励磁电路。
【简答题】使用转义字符,用cat()函数在控制台中打印出下列各式的输出。 To have a \ you need \\ This is a really really really long string
【多选题】What are the respiratory enzyme complexes ?
A.
The three respiratory enzyme complexes, in the order in which they receive electrons, are (1) NADH dehydrogenase complex, (2) cytochrome c reductase complex, and (3) cytochrome c oxidase complex.
B.
Each complex contains metal ions and other chemical groups that act as stepping stones to enable the passage of electrons through the complex.
C.
The movement of electrons through these respiratory complexes is accompanied by the pumping of protons from the mitochondrial matrix to the intermembrane space.
D.
Thus each complex can be thought of as a proton pump.
【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.
【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】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...
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