题目内容
LDH的5种同工酶的电泳结果从（+）极到（—）极的排列顺序是
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利用酶偶联反应来进行酶的活性检测时，应该在酶促反应的A. 线性期 B. 非恒态期 C. 恒态期 D.
Action, alone, is the tinder which 1.___ the map, the parchment, this scroll, my dreams, my plans, and my goals, into a living force. Action is the food and drink which will 2.___ my success.Now I know that to 3.___ fear I must always act without hesitation and the 4.___ in my heart willvanish.From now on, I will remember the lesson of the 5.___who gives of its light only when it is on the wing, only when it is in action.Let others be as butterflies who 6.___ their wings yet depend on the charity of a flower for life. Happiness, in truth, may not be the fruit picked by my action, yet without action all fruit will die on the 7.___. I will act now. From now on, I will repeat these words again and again and again, until the words become as much a habit as my 8.___ and the actions which follow become as natural as the blinking of my eyelids. With these words I can 9.___ my mind to meet every challenge which the failure avoids. When I face 10.___ I will say them and immediately act to remove myself from evil.
与齿轮传动相比较，带传动的优点是（ ）。
节距p是指带在规定的张紧力下（ ）对称中心线间沿节线度量的距离
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