用光学合像水平仪,按对角线法,对边长为2A的正方形平板进行平面测量,测对角线所用桥板中心距长度应为()。
A.A
B.2A
C.1.732A
D.0.868A
参考答案:C
Speaker A: The native American Craft Exhibit closed this afternoon.Speaker B: ______
A.Oh, no! I've wanted to see that for months.
B.Well, why didn't you take me to see the exhibit before it closed
C.Thank you. When will there be such an exhibit again
D.If I were you, I would have gone to see it.
大发公司在原南县进行一项建筑工程建设,由原南县建筑设计院,原南第二建筑公司承建,委托正平监理公司监理。有一高层建筑毗邻施工地点,可能会因大发公司的工程施工而产生地基下沉。()应当向原南第二建筑公司提供与施工现场相关的地下管线资料,原南第二建筑公司应当采取措施加以保护。
A.大发公司
B.原南县建筑设计院
C.正平监理公司
D.原南县人民政府