The great geographer, Xu Xiake, highly praised the beauty of the __.
A. Tai Mountain
B. Hua Mountain
C. Yellow Mountain
D. Heng Mountain
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As of 2018, China has ______ Cultural Heritages.
A. 13
B. 53
C. 4
D. 36
The Hongkong-Zhuhai-Macao Bridge was opened to the public in __.
A. December, 1999
B. October, 2020
C. July, 1997
D. October, 2018
Match the following English words with their Chinese meanings.
若变量x,y均定义为int型，z定义为double型，下列不合法的scanf语句是（）
A. scanf("%x%o",&x,&y);
B. scanf("%x%d",&x,&y);
C. scanf("%o%d%lf",&x,&y,&z);
D. scanf("%x%6.2f",&x,&z);
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