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【简答题】
利用下表中的数据品种母猪的产仔数的标准差(要求:在作业本上列出公式及带入过程和结果,上传图片即可)。
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皮皮学刷刷变学霸
举一反三
【单选题】在实验过程中,不慎将稀盐酸溶液溅入眼内,正确的处理方法是( )。
A.
用大量水冲洗即可
B.
先用大量水冲洗,再用3%-5%碳酸氢钠溶液冲洗
C.
先用大量水冲洗,再用3%-5%碳酸氢钠溶液冲洗,然后立即送往医院
D.
直接用3%-5%碳酸氢钠溶液冲洗
【简答题】n. 秋天,秋季 2. a.可利用的;有效的 3. v. 避免,躲开,逃避 4. v. 唤醒 醒着的 5. ad. 离开;远离
【简答题】读某地等高线地形图（单位：米），完成1～2题。 1．导致图中铁路线弯曲的主导因素有 [ ] A．避开河谷 B．避开山脊 C．联系居民点 D．避开断层 2．图中居民点的分布特点是 ①沿河分布 ②沿交通线分布 ③沿断层线分布 ④聚落的规模与地形有关 [ ] A．①② B．③④ C．①④ D．②③
【简答题】Correct the errors in the following sentences. 1) Many years ago, Jim had lived in Paris with his uncle for a long time. 2) The teacher told the students that light traveled much faster than sound. 3)...
【判断题】New as the professor was to the faculty, he could have told this specimen a number of things but he didn't, because he didn't think the student would stay around very long.
A.
正确
B.
错误
【判断题】原文:He died only a year after he started working with us. It was a car accident and he didn’t have to suffer very long. His mother told me that he had lost his family just the year before and after tha...
A.
正确
B.
错误
【判断题】原文:He died only a year after he started working with us. It was a car accident and he didn’t have to suffer very long. His mother told me that he had lost his family just the year before and after tha...
A.
正确
B.
错误
【单选题】在实验过程中，不慎将稀盐酸溶液溅入眼内，正确的处理方法是（ ）。
A.
直接用 3%-5% 碳酸氢钠溶液冲洗
B.
用大量水冲洗即可
C.
先用大量水冲洗，再用 3%-5% 碳酸氢钠溶液冲洗
D.
先用大量水冲洗，再用 3%-5% 碳酸氢钠溶液冲洗，然后立即送往医院
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