In an IFE matrix, rating number “3” represents a firm's ___________.

A、major weakness 主要弱点

B、minor weakness 次要弱点

C、major strength 主要优势

D、minor strength 次要优势

A、报错

B、'abcabcabc'

C、'abc3'

D、'3abc'

A、Pyt

B、Py

C、yth

D、yt

A、'1234AAA@'

B、'123AAA/7'

C、'123AAA7'

D、'123AAA/@#7'

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、2S,3S

B、2R,3R

C、2S,3R

D、2R,3S

A、1S,3S

B、1R,3R

C、1S,3R

D、1R,3S

A、1S,3S

B、1R,3R

C、1S,3R

D、1R,3S