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【多选题】
建筑产品受不同外部环境因素影响多，主要表现在()。A.
露天作业多
B.
气候条件变化的影响
C.
工程地质和水文条件的变化
D.
地理条件和地域资源的影响
E.
酸雨频繁，使土壤酸化，建筑和材料设备遭腐蚀
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【判断题】The design feature of arbitrariness of language means we can use language to talk about anything we like.
A.
正确
B.
错误
【简答题】Language has many functions . We can use language to talk about language . This function is .
【简答题】Language has many functions. we can use language to talk about itself. This function is _____.
【单选题】language has many functions. We can use language to talk about itself. This function is
A.
phatic
B.
emotic
C.
poetic
D.
metalingual
【简答题】Language has many functions. We can use language to talk about itself. This function is ______ function.
【简答题】We can use language more ____(effective).
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