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【简答题】
若y=x 3 +x-2在P处的切线平行于直线y=7x+1，则点P的坐标是______．
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【单选题】Bridging the Generation Gap America is getting older. In the span of a generation, the average age of U. S. citizens will increase from 32.9 years (1990) to 37.1 years (2020). Thus, it becomes increas...
A.
To help the students to write their autobiographies.
B.
To overcome adversity and achieve happiness and fulfillment.
C.
To develop a relationship with our elderly and young population.
D.
To start an interdisciplinary section on immigration and assimilation.
【简答题】Complete the following sentences according to the first letter given. (1)Lucy is getting married this Sunday. I am going to be her b_________. (2)I started work a_________ d_________and returned only ...
【单选题】拍合式直流电磁铁的电磁吸力：
A.
由通过工作气隙的主磁通产生
B.
由通过可动铁心侧面的漏磁通产生
C.
由通过工作气隙的主磁通和通过可动铁心侧面的漏磁通共同产生
D.
由通过工作气隙和可动铁心侧面的主磁通共同产生
【简答题】clip 2.mp3: Voice-over : By “ seriously ” , my sister _1_ “ intentionally tank( 坦克、打败 ) ” her Penn State interview. Erica: Yo, dude! I ’ m two hours late. Interviewer: uh, well, three. No _2_. Come on...
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