【单选题】The government ______ that the economy grew at about 2 percent last year.
【判断题】事后检验就是比较每一个处理组和另一个处理组,是成对比较。()
【单选题】一般而言,一个投资项目,只有当其()高于其资本成本率,在经济上才是合理的;否则,该项目将无利可图,甚至会发生亏损。
【单选题】不借助其他感官,仅凭借触摸不能认识以往熟悉物品的质、、形和名称是()
【判断题】一般而言,一个投资项目,只有当其投资收益率低于其资本成本率时,在经济上才是合理的;否则,该项目将无利可图,甚至会发生亏损。 ( )
【简答题】从Ⅱ栏中选出与Ⅰ栏相对应的最佳选项。 Ⅰ ( )1. How often do you go to the library? ( )2. How are you feeling today? ( )3. Would you mind opening the windows? ( )4. Look at my new watch. ( )5. Thanks f...
【单选题】The economy grew at its fastest rate since 1980 thanks to a(n) ______ in world trade.
【判断题】向下累计是将各组次数或频率从变量值小的组向变量值大的组进行累计。