题目内容
单片机引脚封装类型大体上都一样。
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1. At that time, _________ that it had been so hard for them to start a small business.
2. At first, the bank ________ my request for a small business loan.
3. He has helped my buyers to find the prodects _________ are right for them.
4. Many elderly people are no longer _________ by their families but are put in care homes.
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