建筑工程图的图线线型有实线、（）、单点长画线、（）、折断线、波浪线等。
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标注圆弧半径时，半径数字前，应加符号（）；标注圆的直径时，直径数字前，应加符号（）。
Canada has ____ provinces and 3 territories.
A. 5
B. 10
C. 15
D. 20
Canada is the ___ largest country in the world.
A. 1st
B. 2nd
C. 3rd
D. 4th
Early settlers to Canada sold animal furs to the _______ Company.
A. East-India Trading Company
B. Harrah's Clothiers
C. Hudson Bay Trading Company
D. Fourrure Animale Socciette
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