题目内容

As the school year ends in USA, One concern of educators is that students who were behind on their shcoolwork before will____________________________ when classes restart in the fall. When visiting students at homes, Batchelor told Rowson how much she had missed him since the pandemic ___________________________ 。When asked what he was doing, Jamie-Lee’s answer was _______________________________ .She then suggested he spend more time _____________________________ ______ . About________________________________ of Batchelor's students have not taken part in the school's online learning program. There are many reasons:Internet connections failed; parents were unable to ______________________________________ ; students did not know how to use technology and more. School systems across the United States have similar concerns.Some report that they have students who have not been heard from at all since the start of ______ ____________________________;At Clark County schools in Nevada, about______ _____________ students missed online classes in mid-April and Despite the efforts made by th school,______ _________________ students remained uninvolved at the end of the year. Nationally, research has suggested the shutdowns could cost students ______ _________________________________.

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政府支出增加1美元将()

A. 使意愿的支出曲线上移1美元
B. 不会使LM曲线发生移动
C. 使IS曲线向右移1/1-MPC个美元
D. 以上都正确

税收增加将()

A. 使IS曲线左移,并使利率和收入水平同时降低
B. 使IS曲线右移,并使利率和收入水平同时提高
C. 使IS曲线右移,提高收入水平同时降低利率
D. 使LM曲线下移(右移),提高收入水平同时降低利率

IS曲线为y=500-2000r,下列哪一个利率和收入水平的组合不在IS曲线上?()

A. r=0.02,y=450
B. r=0.05,y=400
C. r=0.07,y=360
D. r=0.01,y=100

如用kt表示税收乘数、kg为支出乘数,则外生的税收增加△t会使is曲线()

A. 左移kt△t
B. 左移kg△t
C. 右移kt△t
D. 右移kg△t

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