| At the bottom of the world lies a
mighty continent still wrapped in the Ice Age and, until recent times, unknown
to man. It is a great land mass crisscrossed by mountain{{U}} (51)
{{/U}}whose extent and elevation are still uncertain. Much of the{{U}} (52)
{{/U}}is a complete blank on our maps. A 1,000-mile stretch of the coastline
has never been{{U}} (53) {{/U}}by any ship. Man has{{U}} (54)
{{/U}}, on foot, less than one per cent of its ares. Antarctica differs fundamentally from the Arctic regions. The Arctic is an ocean,{{U}} (55) {{/U}}with drifting packed ice and surrounded by the land masses of Europe, Asia, and North America. The Antarctic is a continent nearly as{{U}} (56) {{/U}}as Europe and Au stralia combined, centered roughly{{U}} (57) {{/U}}the South Pole an A. leading B. lacking C. rich D. weak [名词解释]学制
[判断题]分层分级建立相关省电力公司（直属单位）、市级供电公司（厂矿企业、专业公司）、县级供电企业间应急救援协调联动和资源共享机制；公司各单位还应研究建立与地方政府有关部门、相关非公司所属企事业、社会团体间的协作支援，协同开展突发事件处置工作。
A.正确 B.错误 [多项选择]银行存款的清查应根据( )进行核对。
A. 银行存款余额调节表 B. 银行存款总分类账 C. 银行存款日记账 D. 银行对账单 [单项选择]BAKER“Twin Seat”型电潜泵封隔器的坐封方式为（）。
A. 永久式 B. 液压 C. 机械 D. 电缆 [多选题]根据查明的现场情况,决定( )。开挖中如发现新情况,必须跟踪开挖,直至( ),但不得掏挖。
A..开挖范围 B.开挖量 C.全部挖完 D.开挖一半 [判断题]弹条IV型扣件轨距调整量：－8～＋4mm，通过更换不同号码的绝缘轨距块实现轨距和轨向的调整。
A.正确 B.错误 我来回答: 提交
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