In many Catholic countries the carnival takes place______________________.
A. after Easter
B. at Easter
C. 40 days before Easter
D. two weeks before Easter
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Joe has invited Janet to ___________.
A. the cinema
B. a jazz concert
C. the theatre
D. dinner
"GB/T 17450-1980"中的1980是 ?
A. 国家标准代号
B. 标准顺序号
C. 标准批准的年号
A4图纸幅面尺寸为?
A. 210×297
B. 420×297
C. 420×594