【单选题】假设 每个用户平均每小时 会话次数为 0.8 ,平均通话时长为 90 秒,每用户平均语音话务量是多少( C ) 爱尔兰。
【单选题】What is income effect?
A.
Income effect shows the change in the quantity of a good a consumer demands because of a change in income, holding prices constant.
B.
Income effect shows the change in the quantity of a good that a consumer demands when the good's price changes, holding other prices and the consumer's utility constant.
C.
Income effect shows the change in the quantity of a good a consumer demands because of a change in price, holding income constant.
D.
Income effect shows the change in the quantity of a good that a consumer demands when other prices and the consumer's utility changes, holding the good's price constant.
【简答题】图示轴,承受扭力偶矩 M 1 =400N•m 与 M 2 =600N•m 作用。已知许用切应力 [ ]=40MPa ,单位长度的许用扭转角 [ ]=0.25(°) / m ,切变模量 G = 80GPa 。试确定轴径。( 15 分)
【简答题】资产类账户的借方记录资产的 贷方记录资产的 期末余额一般在 。
【单选题】Which of the following statements is true? Which of the following statements is true? Which of the following statements is true?Which of the following statements is true?3. Which of the following stat...
A.
Negotiating parties are able to reach a win-win deal when they are wrestling on a single issue.
B.
If negotiating parties cannot ask their counterparts directly about their interests, they don't have to bother about it any more.
C.
It is very important for negotiating parties to look at their own positions from their counterparts' point of view.
D.
When negotiating parties figure out their interests, they should maximize their gain at all costs.
【单选题】假设每个用户平均每小时 会话次数为 0.8 ,平均通话时长为 90 秒,每用户平均语音话务量是多少( ) 爱尔兰。
【单选题】下列关于干细胞的描述,不正确的是 [ ]