【单选题】根据德布罗意的假设,下列说法正确的是
B.
波长非常短的辐射有粒子性,但长波辐射没有粒子性。
【单选题】In the ship construction portfolio,materials which do not conform to ASTM or ABS specifications must also include the ______.
A.
chemical and physical properties of the material
B.
name of the alternative standard or specification
C.
the ASTM or ABS specification the material approximates
D.
manufacturer or origin of the material
【单选题】根据德布罗意的假设,
C.
波长非常短的辐射有粒子性,但长波辐射却不然。
【单选题】根据德布罗意的假设 , 实物物质粒子性与波动性的联系是
【简答题】The ASTM abbreviation for Polybutadiene rubber is ( ).
【判断题】ASTM(美国材料与试验协会)数据库可以检索ASTM现行标准全文吗?
【判断题】辽代的生女真是纳入辽朝的户籍体系的。()