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当前学科：DNA重组
题目：
问答题
为什么说Alu元件可能作为DNA复制的起点？有什么理由不支持这种假说呢？
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推荐知识点:
下列部件中，属于输出设备有（）
A B/L which is preprinted "shipped on board" and cargo is shipped in container shows as follows: Pre-carriage by Place of Receipt Vessel A Karachi Ocean Vessel Port of loading Vessel B Karachi The port of loading and port of discharge as stipulated in the credit appears in the respective boxes on the B/L. a) The credit stipulates transhipment prohibited. (1)( ) The B/L is acceptable. (2)( ) The B/L may be rejected due to transhipment occurred. b) During the course of ocean carriage, transhipment means (3)( ) unloading and reloading from the pre-carriage (or feeder) vessel (Vessel A) to the ocean vessel (Vessel B) from the initial origin port to the port of loading. (4)( ) unloading and reloading from one ocean vessel to another ocean vessel from the port of loading to the port of discharge stipulated in the credit. c) Loaded on board or shipped on a named vessel refers to: (5)( ) a pre-carriage (or feeder) vessel. (6)( ) an ocean vessel. d) Whether an on board notation should be borne in the B/L? (7)( ) The B/L need not bear an on board notation as it has been preprinted the said wording. (8)( ) As two different vessels appear in the B/L, it would need an on board notation which clearly shows the goods were loaded on board the name of ocean vessel (Vessel B) and port of loading (Karachi), then transhipment would not be occurred.
克服烟气侧的过热器、再热器、省煤器、空气预热器、除尘器等的流动阻力的锅炉主要辅机是（）。
患儿，女，1岁。高热3小时，体温39℃，惊厥1次，为全身性发作。为控制惊厥首选的药物及用药方法是（）
正当持票人的条件是（）。
机要通信业务章戳共有（）种。
建设工程造价具有一般商品的价值规律，与普通商品相比较，建设工程造价在价格形成上的特殊性表现在（）
既善于治疗吐衄便血，又善于治疗肺热咳嗽有痰的药物是（）。
机械制图中尺寸数字表示尺寸度量的（）。
在行政诉讼中，（）对具体行政行为负举证责任。