何谓单片机？单片机与一般微型计算机相比，具有哪些特点？
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拓展训练是一种摆脱传统教学观念的双向学习方式，即“（）”，有其独特性与价值所在。
A. 边学边做
B. 在做中学
C. 在学中做
D. 学习分享
（）是用于客户向银行购买票据和结算凭证时由客户填写，银行凭以向客户出售票据和结算凭证
A. 结算业务收费凭证
B. 手续费收费凭证
C. 购买票据申请单
D. 转账支票
循环贷款的发放日在最高额担保合同中主债权设定期限之内，借款合同都有效
A. 正确
B. 错误
A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by （）.
A. holding its slops onboard until they can be pumped into the city sewer system
B. circulating them through the lube oil purifier to remove water and debris
C. holding its slops onboard until they can be discharged to a shore side reception facility
D. pumping them into a settling tank for separation before pumping the oily water residue overboard
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