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【简答题】
Choose from the list of transitions to fill in the blanks correctly in the paragragh. But, Consequently, Yet, In contrast, first, Fourth, Third, Finally, Instead, Similarly, Although, Second,whereas European universities and universities in the United States are different in many ways. ____1______, European students enroll in fewer courses each term than the United States students do. ____2______, European students seldom live at a university. ____3_______, they live at home and travel to classes. _____4______,most European courses are given by professors who lecture to their classes. ____5______, the United States professors often ask their students questions or allow their students to form discussion groups. ____6_____, European professors ask students to write fewer papers than the United States professors do. ___7_____, European students' final examinations are usually oral, _____8______ American students take written final examinations. ______9______, a European university is mainly a place to study. _____10_____ at most the United States universities, social activities take up a large part of the students' time.
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参考答案:
举一反三
【判断题】Beihai Is _________ of western China,surrounded by sea on the three sides?(C)
A.
正确
B.
错误
【简答题】设(X,Y)有联合密度 (k≥2为整数),求: (1)E(X); (2)E(X|Y=y); (3)说明E(E(X|Y))=E(X),其中E(X|Y)=E(X|Y=y)| y=Y
【简答题】尼可刹米的药理作用及临床应用。
【简答题】设x 2 y-e 2y =siny,求dy.
【判断题】企业采用哪种目标市场营销策略,只需考虑企业自身因素和市场因素。
A.
正确
B.
错误
【单选题】下列特征不是梅毒牙特征的是
A.
半月形切牙
B.
桑葚状磨牙
C.
蕾状磨牙
D.
特纳牙
E.
哈钦森牙
【简答题】设随机向量(X,Y)的联合分布律为求E(X) ,E(Y),E(X-2Y) ,E(3XY),D(X),D(Y),cov(X,Y),ρ X.Y .
【单选题】下列哪项不是先天性梅毒牙的特征
A.
蕾状磨牙
B.
桑葚状磨牙
C.
畸形中央尖
D.
半月形切牙
【简答题】设x 2 y-e 2x =siny,求
【简答题】比较咖啡因、尼可刹米、士的宁的药理作用(特点)及其临床应用?
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