钢筋混凝土用钢筋，非合金钢构成，直径20mm，经热轧后未经其他加工，带有轧制过程中产生的变形，直条状报验。
参考答案：16(72142000)
汉武帝以后，地方上的诸侯国越分越小，实力大减，无力和中央抗衡。这种现象的出现与下列哪项措施的关系最密切[ ]
A．罢黜百家，独尊儒术
B．实行“推恩令”
C．连年征战
D．开拓西域
Franz Boas, a representative of American structuralism, made a thorough study of the native languages and cultures of American ______ which were to be extinct.
A. Indians B. AsiansC. Africans D. Spaniards
