题目

粗细相同的铜丝甲、乙，甲的长度是乙的一半，则甲、乙电阻R甲、R乙大小关系为() A . R甲>R乙 B . R甲<R乙 C . R甲＝R乙 D . 无法比较 答案：BPremier Wen Jiabao's three-day visit to Japan,         as the "ice-melt" trip, has a positive effect on Sino-Japanese relationship． A．intending       B．intended        C．being intended        D．having intended