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【单选题】
免维护蓄电池栅架采用铅钙合金或（），因而减少析气量和耗水量，自放电也大大减少。A.
高铅
B.
C.
低锑
D.
低铅
拍照语音搜题，微信中搜索"皮皮学"使用
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【简答题】试用跨文化交际的相关原理进行分析: 听外国人说汉语总觉得洋腔洋调,不地道。
【单选题】听力原文：I'd like you to meet our sales manager Mr. Jackson. (A) Where has he gone? (B) It's very nice to meet you, Mr. Jackson. (C) What about next Friday? (29)
A.
B.
【单选题】听力原文：I'd like you to meet our sales manager Mr. Jackson. (A) Where has he gone? (B) It's very nice to meet you, Mr. Jackson. (C) What about next Friday? (37)
A.
B.
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