编写水位或潮位观测报告之前,应首先拟定(),并据此分层次详细编写。
A.顺序
B.目录
C.字数
D.编写提纲
参考答案:D
While these were good students,_______ had a score above 60.
A.someone
B.none
C.everyone
D.no one
颈椎斜位摄影矢状面与台面所呈角度应是()
A.15°
B.25°
C.35°
D.45°
E.55°