第4题: [单项选择]初查阶段,天然建筑材料勘察储量一般最少应为设计需要量的()倍。 A. 1.5~2 B. 2~2.5 C. 2.5~3 D. 3~3.5 参考答案:C 答案解析:根据教材1F41103节相关内容,天然建筑材料的勘察级别划分为普查、初查、详查三个阶段。关于料场储量,在初查阶段,勘察储量一般不少于设计需要量的2.5~3倍;详查阶段勘察储量一般不少于设计需要量的1.
第10题: [单项选择]Questions 26 to 29 are based on the passage you have just heard. A. British English. B. Adding of foreign words. C. Borrowing from American Indian words. D. Coined by the first British colonists in America. 参考答案:C 答案解析:[听力原文] Q: Where did the name of the Mississippi River come from