Which of the following statements is used to create an empty set
A: { }
B: set()
C: [ ]
D: ( )
A: { }
B: set()
C: [ ]
D: ( )
举一反三
- Which of the following statements are correct？（ ） A: Ethics are subjective and imprecise. B: Ethics are a set of rules. C: Ethics depend on social, cultural and individual factors. D: Ethics are a set of moral principles that guide attitudes and behaviour.
- In HTML, when the value of the TYPE attribute of the INPUT element in the form is set to ( ), it is used to create a reset button. A: reset B: set C: button D: Image
- In HTML, when the value of the TYPE attribute of the INPUT element in<br/>the form is set to ( ), it is used to create a reset button. A: reset B: set C: button D: Image
- In HTML, when the value of the TYPE attribute of the INPUT element in<br/>the form is set to ( <br/>), it is used to create a reset button. A: reset B: set C: button D: Image
- Which of the following kingdoms was set up by the Jutes?