在已知高程点安置仪器,观测待定点以计算其高程的方法称()。
A.直觇
B.反觇
C.单觇
D.复觇
参考答案:A
It _____ me to see so many children were trapped in ruins and some of them were dead. [ ]
A. surprises
B. shocks
C. shakes
D. encourages
集体儿童机构保健的原则不包括()
A.合理的生活作息
B.加强饮食管理
C.合理教养
D.父母定期探视
E.健全防病制度