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搜题
【单选题】
关于营养性缺铁性贫血的诊断下列哪项是错误的
A.
血像是小细胞低色素性贫血
B.
面色苍白、异嗜癖
C.
骨髓像示幼红细胞增生活跃,以中晚幼红细胞增生为主
D.
血清铁蛋白<16g/L
E.
铁剂治疗无效
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【简答题】B T om had got a summer job. He worked in a park every morning. he usually greeted the visitors at a gate, he answered their questions and gave them a map of the park. In the afternoon, he helped to s...
【单选题】普通最小二乘估计 OLS 对什么求偏导来估计参数的?
A.
被解释变量
B.
解释变量
C.
被解释变量和解释变量
D.
待估参数
【判断题】普通最小二乘估计OLS是对待估参数求偏导来估计参数的。
A.
正确
B.
错误
【简答题】B T om had got a summer job. He worked in a park every morning. he usually greeted the visitors at a gate, he answered their questions and gave them a map of the park. In the afternoon, he helped to s...
【判断题】普通最小二乘估计OLS是对待估参数求偏导来估计参数的。
A.
正确
B.
错误
【简答题】B T om had got a summer job. He worked in a park every morning. he usually greeted the visitors at a gate, he answered their questions and gave them a map of the park. In the afternoon, he helped to s...
【单选题】关于革兰氏染色,下述哪项是错误的
A.
结晶紫初染
B.
碘液媒染
C.
酒精脱色
D.
稀释复红复染
E.
G+菌染成红色
【简答题】Lucy got up early last Saturday morning. She wanted 1 with some of her friends in Green Park. She was very happy about it. 2 she was ready, she got on her bike and left for the park --- it was on the ...
【单选题】数码管动态显示的优点是()
A.
硬件复杂
B.
程序复杂
C.
硬件简单
D.
占用资源少
【单选题】Was it in the park _____ he often did morning exercises _____ he met his beloved wife? [     ]
A.
that; that
B.
where; where
C.
where; that
D.
that; where
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