The DD schedule shows_______. ( ) A: interest rate and output pairs for which aggregate demand equals aggregate output. B: exchange rate and output pairs for which aggregate demand equals aggregate output.2 C: interest rate and output pairs for which aggregate supply equals aggregate output. D: exchange rate and output pairs for which aggregate demand is greater than aggregate output.

The effective volume of aggregate is () A: Volume of solid aggregate B: volume of solid aggregate and surface voids C: volume of solid aggregate and surface voids not filled with asphalt D: volume of solid aggregate, surface voids and closed voids

以下不能实现统计各个部门男教师的人数的命令是？ A: db.teachers.aggregate([{$match:{"sex":"男"}},{$group:{"_id":{"dept":"$dept"},"num_count":{$sum:1}}}]) B: db.teachers.aggregate([{$group:{"_id":{"dept":"$dept"},"num_count":{$sum:1}}},{$match:{"sex":"男"}}]) C: db.teachers.group({"key":{"dept":2},"initial":{"count":0},"reduce":function(cur,result){return result.count++},"cond":{"sex":"男"}}) D: db.teachers.runCommand({"group":{"ns":"teachers","key":{"dept":0},"initial":{"count":0},"$reduce": function(cur,result){result.count++;},"cond":{"sex":"男"}}})

When taxes increase, consumption A: increases, so aggregate demand shifts right B: increases, so aggregate supply shifts right C: decreases, so aggregate demand shifts left D: decreases, so aggregate supply shifts left

Rising oil prices in the U.S. during the 1970s caused the economy’s ( ) A: aggregate supply curve to shift to the right. B: aggregate supply curve to shift to the left. C: aggregate demand curve to become vertical. D: aggregate demand curve to become horizontal.

An increase in labor hours will lead to A: a shift of the aggregate production function but no movement along it. B: a movement along the aggregate production function but no shift in it. C: both a movement along and a shift in the aggregate production function. D: neither a movement along nor a shift in the aggregate production function.

配置aggregate port的注意事项

Which of the following is most commonly used to monitor short-run changes in economic activity? A: the inflation rate B: real GDP C: aggregate demand D: aggregate supply

The value of national output: ( ) A: Is the same of the output of all businesses. B: Is the aggregate of output of employed persons. C: Is synonymous with aggregate manufacturing output. D: Utilizes the "added value" concept.

When<br/>taxes increase, consumption () A: decreases<br/>as shown by a movement to the left along a given aggregate demand<br/>curve. B: decreases<br/>as shown by shifting aggregate demand to the left. C: increases<br/>as shown by shifting aggregate supply the left. D: None<br/>of the above is correct.