| Agriculture is undoubtedly the most important
sector in the economies of most non-oil exporting African countries. It
{{U}} (62) {{/U}} about 30% of Africa’s GDP and contributes {{U}} (63)
{{/U}} 50% of the total export value, {{U}} (64) {{/U}}
70% of the continent’s population depending on the sector for their
{{U}} (65) {{/U}}. Production is subsistence in nature with a high
{{U}} (66) {{/U}} on the rain. The debate on climate change and its
impacts on agriculture is {{U}} (67) {{/U}} very crucial to the very
survival of the continent and its people. The continent is particularly
{{U}} (68) {{/U}} to climate change because it includes some of the
world’s poorest nations. The climate in Africa is {{U}} (69) {{/U}} tropical in nature, which is broadly {{U}} (70) {{/U}} into three main climatic zones: {{U}} (71) {{/U}} equatori A. dry B. warm C. humid D. wet [填空题]Compared with the immediate practical responsibility of the scientist, the (1) of the artist must seem puny. The decision which faces (2) is not one of practical action: of course he will try to throw this (3) into the scale, and that weight, if he is a writer or (4) a painter of genius, may have its effect. For the novelist—in our society the only artist who has a mass audience and at the same time effective economic control of the means of addressing (5) —the hope of some decisive influence is a reasonable (6) . For him, since he takes of all artists (7) is probably the largest portion of his culture as material, there is no (8) escape from the necessity for treating the content of his work seriously than (9) is for the social psychologist he is coming so closely to resemble. The dichotomy which people have tried to establish between artistic proficiency and (10) content is bec
[多选题]CR400AF型动车组一级检修车体两侧设备检查作业前确认（）。
A.接触网断电 B.停放制动已施加 C.安全号志 D.接地杆可靠插设 [简答题]请问铺长条桌台布的要求是什么？
[多选题]联锁设备主要包括（ ）。
A.A.道岔 B.B.信号机 C.C.联锁机 D.D.联锁控制终端 [单项选择]
[听力原文]8-10 A. The bookstore. B. The Great Wall. C. The hotel. D. The travel agency. [单项选择]首选链霉素的感染性疾病是（）
A. 结核 B. 鼠疫 C. 细菌性心内膜炎 D. 脑膜炎 [多选题]下列地貌的形成与冰川有关的有（ ）。
A.欧洲平原上低缓的波状丘陵 B.斯堪的纳维亚半岛西侧的峡湾 C.阿尔卑斯山地两侧的湖泊 D.阿尔卑斯山脉峰峦挺拔，峰顶终年积雪 [单项选择]The bicycle is a form of transport whose ____________ we take for granted.
A. expenditure B. satisfaction C. coordination D. convenience [判断题]在施工中发生危及人身安全的紧急情况时，作业人员有权立即停止作业或者在采取必要的应急措施后撤离危险区域。
A.正确 B.错误 [判断题]炉顶点火必须在风口堵泥完毕，赶完煤气后进行。
[单选题]户外封闭式（B）高压开关柜有GWC－15、GWC－3 A、GWN－1等型号。
A.2～5 kv B.3～10 kv C.5～10 kv D.10～36kv [判断题]中间继电器也是电流继电器，只是触头较多。()
A.正确 B.错误 [判断题]火灾的迅速蔓延是由于热辐射、热传导、热对流造成的。
[单选题]超过( )M线路时,定阻式扩音机必须用高阻抗输出。
A.50M B.100M C.200M D.500M [单项选择]与传统人寿保险相比，万能寿险在经营管理方面所具有的特征是( )。
A. 封闭性 B. 透明性 C. 可靠性 D. 单一性 [判断题]( )终到动车组列车在站要进行四项技术作业。"
A.正确 B.错误 [单选题] 增加垂直安定面面积产生的影响将[1分]
A.增加升力 B.增加横向稳定性 C.增加纵向静稳定性 [单项选择]关于体外冲击波碎石（EsWL），不正确的是（）
A. 是上尿路结石最常用的治疗方法 B. 上尿路结石合并结石远端尿路梗阻者禁用 C. <2cm的肾结石碎石效果较好 D. 对胱氨酸结石疗效差 E. 如需再次治疗，间隔时间不少于5天 [判断题]全年原煤产量同比增加300万吨以上，仅用两年时间再次实现千万吨跨越。
[单选题] 合成橡胶、合成纤维属于( )固体。(中)
A. 易燃 B. 难燃 C. 可燃 D. 不燃 我来回答: 提交
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