如果实验得到遗传与儿童多动行为的相关系数是0.5，这意味着有多少儿童多动行为的变异会被除遗传外的其他变量解释？（）
A. 0.05
B. 0.25
C. 0.5
D. 0.75
查看答案
If you cut another car off, its driver may be ______.
A. impatient
B. terrible
C. angry
D. both A and B
Henry is ______ to stay in the forest.
A. glad
B. angry
C. safe
D. afraid
The sentence "Traffic accidents declare millions of lives" means ______.
A. traffic accidents make some people become millionaires
B. many people die from traffic accidents
C. millions of people say they themselves have had traffic accidents
D. millions of people remain healthy after traffic accidents
Henry has to cut down the trees because ______.
A. he can do nothing except it
B. he likes to stay in the quiet forest
C. he can't get on well with others
D. he is very strong
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