问题
单项选择题
岩石结构体是指由不同产状的结构面组合围限起来,睁岩体分割成相对完整坚硬的单元块体,其结构类型的划分取决于()。
A.结构面的性质
B.结构体型式
C.岩石建造的组合
D.三者都应考虑
答案
参考答案:D
岩石结构体是指由不同产状的结构面组合围限起来,睁岩体分割成相对完整坚硬的单元块体,其结构类型的划分取决于()。
A.结构面的性质
B.结构体型式
C.岩石建造的组合
D.三者都应考虑
参考答案:D
请根据句意从方框中选择合适的单词,并用其适当形式填空,使句子通顺。
小题2:Today is Children’s Day. The children are enjoying festival now. 小题3:To support a big family, his father has to look for a job besides delivering newspapers and milk. 小题4:For your , you mustn’t stand under the tree when it’s raining in summer. 小题5:Last month, Mrs Obama, U.S. First Lady, paid a week-long visit to China focusing on . She visited some schools and universities. |