()是文艺复兴的先驱,他的《()》是一部里程碑式的作品。
参考答案:但丁;神曲
Becky took a photo of her friends while they _________ computer games.
A.play
B.are playing
C.were playing
D.have played
砂的粗细程度是指不同粒径的砂粒,混合在一起后的总体砂的粗细程度。按粗细程度不同,砂子分为()砂。
A、特粗
B、粗
C、中
D、细
E、特细