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【判断题】
一个生态系统增加或减少一个物种对整个系统无影响。A.
正确
B.
错误
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【单选题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as in toda...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers' professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
【简答题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do . In the ancient world , as is to...
【单选题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to five children something to do. In the ancient world, as is toda...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers' professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
【单选题】听力原文： There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as t...
A.
Because boys and girls are being prepared for different social roles.
B.
Because boys are more courageous.
C.
Because toy makers want to diversify their products.
D.
Because parents have different expectations for boys and girls.
【简答题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to five children something to do. In the ancient world, as is toda...
【单选题】There seems never to have been a civilization without toys, but when and how they developed is unknown. They probably came about just to give children something to do. In the ancient world, as is toda...
A.
their social roles are rigidly determined
B.
most boys would like to follow their fathers' professions
C.
boys like to play with their fathers while girls with their mothers
D.
they like challenging activities
【单选题】哥特摇滚风以其鲜明的特点占据了时尚风格一席之地,其表现为喜欢黑色、黑暗的颜色,有的时候也会用白色,它带有一种非常明显的一种( )的色彩。
A.
黑暗
B.
奇特
C.
嘻哈
D.
宗教
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