高等学校的目标管理一共有以下环节，目标制定，()，目标考核环节，总结反馈。

I have _________ some courses and software to my Smartphone, and I find they are very interesting and easy to use.

A、uploaded
B、downloaded
C、copied

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_________ we've no money, we can't buy it.ofC、Therefore

A、Since
B、Because

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