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题目：
多选题
A抗SCL-70抗体阳性率高
BB.抗着丝点抗体（AC少见
C对称性广泛性皮肤纤维化
D多伴有内脏病变
E病情进展快
答案：
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窦性P波的方向应该是（）
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氨在常温常压下为无色气体，具有刺激性气味，能灼伤皮肤、眼睛，刺激呼吸器官黏膜。
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以下关于危害国防利益罪的说法正确的有（）。
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短路点的过渡电阻对距离保护的影响，一般情况下是（）
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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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稽留流产(missed abortion)
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在迈克耳逊干涉仪的反射镜M2平移距离为0.3220mm时，测得某单色光的干涉条纹移过1024条，则该单色光的波长为：（）
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下列有关开盘价和收盘价的表述中，正确的有（）。
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狼疮肾炎活动时宜选用（）
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交替运输