水准仪的望远镜视准轴与水准管轴的夹角在竖直面上的投影叫做()。
A.i角(水准仪的视准轴误差)
B.φ角(水准仪的交叉误差)
C.水平轴倾斜误差
D.竖直轴倾斜误差
参考答案:A
第一产程活跃期是指宫口扩张()。
A.0~3cm
B.2~4cm
C.3~6cm
D.3~9cm
E.3~10cm
In relation to the legal system of the Hong Kong Special Administrative Region, explain the sources of law of the Special Administrative Region. (10 marks)