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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.
WRITING TASK 1 You should spend about 20 minutes on this task. The first chart below shows how energy is used in an average Australian household. The second chart shows the greenhouse gas emissions which result from this energy use. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write at least 150 words.
A、proportion
B、part
C、choice
D、chance
A、content
B、stamp
C、data
D、common
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.
A、How did you like the movie last night?
B、What about the movie last night?
C、Would you like the movie last night?
D、I was wondering if you’d like the movie last night.
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