单选题：Some scientists doubted

题目分类：理工类
题目类型：单选题
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题目内容：

Some scientists doubted A．if the Gardeners' argument was sound
B．because she was cleverer than other chimps
C．when she wanted to eat
D．while she was at a research center in Ellensburg
E．because she could use sign language to ask for fruits
F．while Washoe was learning sign language

参考答案：

答案解析：

轻度营养不良调整饮食时，开始供给热量为

轻度营养不良调整饮食时，开始供给热量为A．418-502kJ/kg(100-120kca/kg) B．502-585kJ/kg(120-140kcal/kg)

分类：理工类题型：单选题

一个健康儿体重7．5kg，身长62cm，会翻身，能独坐很久，不会爬，能发出“爸爸”、“妈妈”等复音，但无意识，能听懂自己

一个健康儿体重7．5kg，身长62cm，会翻身，能独坐很久，不会爬，能发出“爸爸”、“妈妈”等复音，但无意识，能听懂自己的名字，其月龄最可能为A．3～4个月 B

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The main task of the Kepler space telescope is to find out

The main task of the Kepler space telescope is to find out planets with similar

分类：理工类题型：单选题

请根据短文内容，回答题。So Many "Earths"The Milky Way (银河) contains bill

请根据短文内容，回答题。So Many "Earths"The Milky Way (银河) contains billions of Earth-sized

分类：理工类题型：单选题

Traffic and home heating were considered to be the biggest s

Traffic and home heating were considered to be the biggest sources of PAHs for

分类：理工类题型：单选题