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【单选题】
已知随机变量 X 与 Y 相互独立,且它们分别在 [-1,3] 和 [2,4] 上服从均匀分布,则 E(XY)=A.
10
B.
6
C.
3
D.
12
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举一反三
【简答题】Like other approaches of foreign language teaching, the objectives of the Oral Approach are to help learners get a practical ______ of the four basic skills of language.
【简答题】I hope this will be an interesting and ____day for you.
【简答题】I hope this will lead to further business between us.(英译中)
【简答题】Brainstorm ideas for a topic sentence and write one for a topic below. A happy, surprising moment in your life
【简答题】I hope this will _________you to change your mind.
【简答题】I hope this will _________ you to change your mind. (persuade)
【单选题】I hope this success will ____ you to greater efforts.
A.
entire
B.
inquire
C.
inspire
【多选题】Purpose of Annual Objectives: .年度目标在战略实施中的作用。
A.
Basis for resource allocation资源分配的基础
B.
Mechanism for management evaluation帮助建立起管理评估的机制
C.
Metric for gauging progress on long-term objectives衡量长期目标进展情况的度量标准
D.
Establish priorities (organizational, division, & departmental)为组织整体、业务单元或部门中的各项活动建立优先次序
【判断题】Annual objectives are long-term milestones that organizations must achieve to reach short-term objectives.
A.
正确
B.
错误
【简答题】W : Let’s begin now. First of all , I’d like to say I hope this will be the beginning 1 . M : Yes, so do we. W: OK, can we agree on the overall procedure for today? 2 yo ur catering needs and to decid...
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