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【简答题】
Fill in the blanks with the correct form of the given verb. Every Monday, Sally (drive)_____ her kids to football practice.
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反馈参考答案：
举一反三
【简答题】实验分析：
某蛋白Fn可能与细胞的铁元素代谢（即细胞对铁的吸收、储存或排放）有关。为了研究它的功能，进行了以下实验：
首先将编码Fn的cDNA克隆到真核细胞的表达载体上，且载体的启动子受到四环素的激活，即只有加入四环素时，克隆的基因才表达。将克隆有Fn的cDNA的载体转染到细胞中，用含有柠檬酸亚铁的培养液培养细胞，并进行了两个实验。
实验1：将转染细胞平均分配到两个培养盘中，一盘加入...
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【简答题】Watch the video.Write the correct word or phrase to complete each sentence. 1.Erica says to Renee,"Hey,I'll have to______." 2.Jay says to Erica," ______hanging up the phone?" 3.Erica replies,"Sorry.My...
【单选题】So little ________ about science that the lecture was my understanding.A．I know; overB．knew I; b
A.
35. So little ________ about science that the lecture was my understanding. A．I know; over
B.
knew I; beyond
C.
did I know; beyond
D.
did I know; over
【简答题】Playing is serious business for children. In fact, it’s what they do best! Ask them why they do it, and kids will probably say, “Because it’s fun!” But it’s much more than that. It’s also good for the...
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