2. 金融经济
  3. Poor grades are usually the result of___________.A.poor sleeping habit B.lazines

Poor grades are usually the result of___________.A.poor sleeping habit B.lazines

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问题 Poor grades are usually the result of___________.
选项 A.poor sleeping habit
B.laziness
C.lack of sleep
D.inability to form good study habits
答案D
解析由第二段第四句话“poor grades are often a result of poor study habits”可知成绩差是由不良的学习习惯造成的结果。因此答案为D。
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