即使没有统计成绩的曲线图表，作弊也会“毒害”课堂，其他人可能会感到竞争压力过大而加入作弊的行列。
Even if there is no curve, cheating "poisons" the classroom, and others may feel pressured to join in.
曲线图表明，家庭收入比例急剧下降，只占总数的13%。
The curve graph shows that the percentage of family income has declined sharply, accounting for only 13 percent of the total.
不能创建图表、曲线图和宏，而且只支持png图像文件。
It cannot create charts, graphs, or macros, and it supports only PNG files for images.
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