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【单选题】
胆汁中消化有关成分是:
A.
胆盐
B.
胆固醇
C.
胆色素
D.
脂肪酸
E.
矿物质
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参考答案:
举一反三
【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】数码管动态显示的优点是显示稳定,显示亮度高,程序简单。
A.
正确
B.
错误
【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...
【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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