Exposure to asbestos fibers can cause cancer_____ Exposure to asbestos fibers is harmful to people’s health,______

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问题 Exposure to asbestos fibers can cause cancer_____
Exposure to asbestos fibers is harmful to people’s health,______

选项 A、so the use of asbestos is limited
B、but asbestos will continue to be used for a long time to come
C、so other new kinds of materials are under development
D、but they will not be so when ventilation devices are used

答案B

解析 第二段最后—句指出,尽管已经利用其他建筑材料,但石棉由于实用和成本低还会在英国建筑业中使用许多年。
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