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无粘结预应力平板结构中,预应力筋一般按照____方向配置。(填空2 分)

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孔道留设的方法包括____、钢管抽芯法和预埋波纹管法。(填空2 分)

According toUNESCO, Which of the following is not intangible cultural heritage?

A. Chinese Paper Cutting
B. Dough Figurines
C. Jiangzhou Drum Music
D. the Great Wall

Which country has the largest number of intangible cultural heritage in the world?

A. China
B. Japan
C. America
D. German

Which of the following is not a feature of intangible cultural heritage?

A. inclusive
B. community-based
C. permanent
D. representative