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Lesson one Pre-class Quiz-Letter DIctation-1Listen and Write down letters as you hear (upper case 字母大写)[音频]1.______________2. ______________3. ______________4. _____________5. _____________

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Lesson one Pre-class Quiz-Letter DIctation-2Listen and Write down letters as you hear (upper case 字母大写)[音频]

Lesson one Pre-class Quiz-Letter DIctation-3Listen and Write down letters as you hear (upper case 字母大写)[音频]

Lesson one Pre-class Quiz-Letter DIctation-4Listen and Write down letters in each transmission as you hear (upper case 字母大写)[音频]1.Clearedto_______2. Report__________3. Sayagainafter_________4.Verifyover__________5. Requetdirect__________

(单选)台座法主要生产哪种构件 ( )

A. 叠合板
B. 墙板
C. 楼梯
D. 阳台板

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