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下列科学家中,第一个计算出彗星运行轨道的是( )
婴幼儿缺乏维生素D可引起()。
2010年,国内旅游平均每人次消费( )元。
“国家既是法的父母,又是法的子女”。这句话表明()
G+菌与G-菌细胞壁共有的组分是( )。
扫描层厚及层间距选择在3~5mm范围内的扫描称()
从波斯湾出发运往欧洲和北美的石油,海上运输路线正确的是()
与旅游者建立“伙伴”关系要注意与他们保持( )。
男,10岁,双上肢及右下肢Ⅲ度烧伤30%,伤后7天体温不升,呼吸40次/分,淡漠不语,创面颜色转暗,创缘下陷,痂下少许积液。首选创面处理方法是().
审计质量管理的重要意义是()。
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A marine chemist issues gas free certificates and is certified by which organiza...
A marine chemist issues gas free certificates and is certified by the().
A:()is the nearest chemist's? B: On the corner.
A:()is the nearest chemist's? B: On the corner.
船钟()
What is considered a Serious Marine Incident? ()
Whose major responsibilities are for Iraqi issues?
Whose major responsibilities are for Iraqi issues?
Every teacher ought to()kids to think about current issues.
Plain language is usually used on marine weather().