漆膜主要成膜物质是（）。 ["辅料","颜料","助剂","树脂"]
在单相半波整流电路中，负载电阻上的直流电压是交流电压的（）倍。 ["0.45","0.9","1","1.2"]
生物样品经过固定后就会失去生物活性，我们可以借助相差显微镜观察活细胞显微结构的细节。相差显微镜的设计利用了光线的哪种现象，从而将相差变为振幅差，实现了对活细胞和未染色标本的观察？（） ["光的干涉","光的反射","光的折射","光的散射"]
“以小人之心度君子之腹”就是一种典型的首因效应。
Spreading oil on the open sea has the effect of（）. ["diminishing the height of the seas","lengthening the distance between successive crests","increasing the height of the seas","preventing the wave crests from breaking"]
欧洲的地形有何特点？与其地质构造有什么关系？
