单项选择题It is not feasible to build sea defenses to protect against erosion because______.
单项选择题What is the cause of the problem that people living on parts of the south coast of England face
单项选择题According to the author, when buying a house along the south coast of England, people should______.
单项选择题A.lightB.midstC.gapD.duration
单项选择题A.composeB.createC.stirD.encourage