Lines drawn through points on the Earth having the same atmospheric pressure are known as
A. isothermal
B. millibars
C. isobars
D. Seismics
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柜、橱、架的高度应以人们伸手能够存取为原则，一般不宜超过()
A2000mm
B1800mm
C1600mm
D2200mm
长期以来我国建筑设计工作者贯彻执行的设计原则是：()
AA 适用 经济 美观
B规范
C民族化
D豪华
Light Lists for coastal waters are ______.
A. published evry year and require no corrections
B. published evry second year and must be corrected
C. published evry five years and require no corrections
D. accurate thru NM number on title page and must be corrected
Lighter longitudinal stiffening frames on the vessel side plating are called ______.
A. stringers
B. side frames
C. side stiffeners
D. Intercostals
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