爪角部分的连檐、勒檐条，按连檐、勒檐条项目乘以系数（）。
A.1.1
B.1.2
C.1.3
D.1.5
参考答案：C
Ann has red hair and blue eyes. Tom has black hair and brown eyes. They have different _________. [ ]
A. hands
B. face
C. looks
D. hair
当地形高差比较大时，一般要作（）校正.
A、井口.
B、低降速带.
C、基准面.
