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Text{{/B}} After lunch, without permission from their parents, the two boys set off to explore the part of the beach which {{U}} (26) {{/U}} by the headland. They had {{U}} (27) {{/U}} their young sister to {{U}} (28) {{/U}}, saying that the long walk would be {{U}} (29) {{/U}} tiring for her. Once they had got beyond the headland, the beach {{U}} (30) {{/U}} away endlessly before them. {{U}} (31) {{/U}} discovering the world. There were damp, dark caves to {{U}} (32) {{/U}}; there were innumerable pools among the rocks, full of sea creatures; {{U}} (33) {{/U}} here and there along the beach were those strange, yet commonplace objects, washed up and {{U}} (34) {{/U}} by the tide. The afternoon passed quickly. The sun was already setting when the boys reluctantly {{U}} (35) {{/U A. tied B. placed C. hung D. lowered [判断题]客房清洁卫生的质量控制途径主要是强化员工卫生质量意识、明确清洁卫生操作程序和
标准、严格逐级检查制度、重视客人意见等。（） A.正确 B.错误 [判断题]( )B737型飞机机载手电筒从固定支架上取下，系统自动工作。
A.正确 B.错误 [单项选择]单萜类的是( )
A. 龙胆苦苷 B. 莪术二酮 C. 穿心莲内酯 D. 紫杉醇 E. 薄荷醇 [单项选择]与自身免疫病的组织损伤机制有关的是（）
A. Ⅰ、Ⅱ、Ⅲ型超敏反应 B. Ⅱ、Ⅲ、Ⅳ型超敏反应 C. Ⅰ、Ⅲ、Ⅳ型超敏反应 D. Ⅰ、Ⅱ、Ⅳ型超敏反应 E. 以上都不是 [单项选择]下列哪种原因引起的肠梗阻不属机械性梗阻
A. 肿瘤 B. 急性肠炎 C. 炎症性狭窄 D. 肠扭转 E. 腹腔内脓肿 [单选题] 警用无人驾驶航空器必须取得身份识别编码方可投入使用,身份识别编码具有。
A.唯一性 B.独立性 C.统一性 我来回答: 提交
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