A、proportion
B、part
C、choice
D、chance
A、proportion
B、part
C、choice
D、chance
This task designs a simple access control system including 4 buttons and 1 7-segment display driver. The basic functions are as follows: 4 buttons, respectively representing the numbers 0,1,2.3 The password is set in advance in the program, with the number between 0 and 3 The 7-segment tube displays "-", indicating waiting for password input When the password is entered correctly, the character "P" is displayed about 3s, and the lock is opened through P3.0; Otherwise, the character "E" is displayed, about 3s, and the lock remains locked.
A、Bar chart
B、Histogram chart
C、Line chart
D、Pie chart
A、chart of accounts
B、journal
C、account
D、None of the above.
A、wasteful
B、competitive
C、environment-friendly
D、poisonous
A、That would be great, thanks.
B、Sure. What time?
C、I’d love to, but I have piles of homework to do.
D、No, I don’t like watching movies.
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