单片机最小系统是指单片机能够工作的最小电路，一般包括电源电路、时钟电路和复位电路。
查看答案
Where did J.K. Rowling come up with the idea for Harry Potter?
At a café
B. On a train.
C. At a cinema.
D. In a bookstore.
What areJ.K. Rowling's further plans?
A. She won’t write any more books.
B. She will write more magic stories.
C. She hasn’t said anything about her future plans.
D. She said she would work on more serious subjects.
What are the two speakers mainly talking about?
A. Rowling’s secret.
B. Rowling’s writing plan.
C. A new book by Rowling.
D. An interview with Rowling.
WhatdidStephen'smotherdowhenshecameintothekitchen?
A. Shegavehimalonglecture.
B. Sheshoutedathiminanger.
C. Sheenjoyedthewonderfulmess.
D. Shecleanedupthemesswithhim.
微信支付 
支付宝支付