万级的计数单位有万、十万、百万、千万。[ ]
正确
106. The stone steps up to the mountain temple had been worn ______ by centuries of visitors from every part of the world.
A．smooth
B．smoothly
C．old
D．Broken
美感包含着（）
A.满足感、愉快感和幸福感
B.和谐感
C.精神上的自由感
D.物质享受感
E.心灵上的自豪感
