单项选择题
A.the Canadian Shield/the Appalachian Region B.the Canadian Shield/the Rocky Mountains C.the Great Lakes/the Arctic Islands D.the Appalachian Region/the Great Lakes
The St.Lawrence and（）together form an important transpo...
单项选择题The St.Lawrence and（）together form an important transportation network for eastern Canada.
A.the Mackenzie B.the Great Lakes C.the Yukon D.the Hudson Bay
The longest river in Canada is（）A.the MackenzieB.the St...
单项选择题The longest river in Canada is（）
A.the Mackenzie B.the St.Lawrence C.the Severn D.the Yukon
Canada.s largest city is（）A.MontrealB.TorontoC.OttawaD....
单项选择题Canada.s largest city is（）
A.Montreal B.Toronto C.Ottawa D.Vancouver
