习近平总书记在2016年教师节讲话中指出，教师要做学生发展的“可路人”。其内容是()。①做学生锤炼品格的引路人②做学生学习知识的引路人③做学生提升能力的引路人④做学生创新思维的引路人⑤做学生本献祖国的引路人
A. ①②③④
B. ①②③⑤
C. ②④⑤
D. ①③④⑤
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比例尺有（ ）几种。
A. 数字比例尺
B. 符号比例尺
C. 图示比例尺
D. 颜色比例尺
Warm-up:Choose the correct answer based on what you heard from the conversation.[音频]1) Why has the university fired four professors?
A. Because the university doesn’t think they are important.
Because the university doesn’t think they are good to students
C. Because the university doesn’t think their program is important.
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