“树树皆秋色,山山唯落晖。”二句出自()的《野望》。
A. 王绩
B. 王勃
C. 王之焕
D. 王昌龄
如何识边忍冬科树种?荚蒾属树种的果实为何颜色?观赏价值如何?
消防控制室应设置应急照明装置。其照度务必在火灾时保持()的工作照度。
A. 5勒克司
B. 1勒克司
C. 正常
D. 必要
Magnetic compass deviation().
A. varies depending upon the bearing used
B. is the angular difference between magnetic north and compass north
C. is published on the compass rose on most nautical charts
D. is the angular difference between geographic and magnetic meridia