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题目：
单选题
A黄而鲜明
B黄如烟熏
C面黄而垢
D淡黄消瘦
E淡黄浮肿
答案：
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黑度计测定的是（）。
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国债定向发售
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恶性肿瘤的分化程度是指（）
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Choose the best words into the sentences. Sudan is the only male northern white rhino (犀牛) left in the world. That (mean) Sudan, 42, is the last hope for avoiding extinction. (protect) him, officials have placed him under 24-hour armed guard at the OI Pejeta Conservancy in central Kenya. Sudan lives there two female northern white rhinos, Fatu and Najin. Northern white rhinos, can weigh up to 5,000 pounds, were once plentiful across northern and central Africa. (hunter) have killed thousands of rhinos because of high demand for the animals，horns (角). Rhino horns, believed to have medical effects, are used in (tradition) Asian medicines. More than 1,000 rhinos (kill) in 2014 in South Africa alone and fifty-four rhinos in Kenya, which has a much (small) population. Sudan, Fatu, and Najin have had their horns (remove) so that they will not be hunted. People hope Sudan and one of the females will be able to have a baby. Sudan is very old, but scientists will not give up hope.
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上颌窦内靠下壁的半圆形软组织影边缘光滑。直径1.0～1.5cm，窦腔内其余部分无异常，最可能的诊断是（）
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（）属于精细加工策略。
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预热器应设计合理满足本炉工况、（）性能好、（）性能好漏风小、抗振动、耐腐蚀、受热变形小、不易积灰且清灰方便、检修方便、制造质量高使用寿命长。
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受扭实心等直圆轴，当直径增大一倍时，其最大剪应力τ1max和两端相对扭转角2与原来的τ2max和1的比值为：（）
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下列有关珍珠状阴茎丘疹临床表现的描述，正确的是（）。
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软组织损伤康复评定包括____和____两方面。