Changes in the social structure may indirectly（ ）juvenile crime rates.For example,changes in the economy that lead to fewer job opportunities for youth and rising unemployment in general make gainful employment increasingly difficult to obtain.

单选题

Wherever there is matter.There is energy;all changes of matter（ ）changes in the form of the energy.

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多选题

Great changes ________ in companies in the U.S. and abroad because of globalization.

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单选题

During the past ten years there have been dramatic changes in the international situation.

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单选题

Derivational morpheme contrasts sharply with inflectional morpheme in that the former changes the _____ while the latter does not.

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问答题

When we work together，we can create ﹍ changes in the world.

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