First impressions really do _____. ()
A: is valid
B: are sound
C: vital
D: count
A: is valid
B: are sound
C: vital
D: count
举一反三
- According to Dallas McKennon, the old way of making cartoons was to ______. A: do the drawings first, and then have the actors record the sound B: photograph the actors first, and then do the drawings C: record the sound first, and then photograph the actom D: find the actors first and then have them record the sound
- He is so strong that he can lift 100 kilograms.（ ） A: N = not an argument B: A = an argument that is neither valid nor sound C: V = an argument that is valid but not sound D: B = an argument that is both valid and sound
- A<br/>valid argument must be a sound argument, but a sound argument is not<br/>necessarily a valid argument.
- All valid arguments are sound arguments.
- Mount Everest is taller than Mount Kilimanjaro. No anthill is as tall as Mount Kilimanjaro. Therefore， Mount Everest is taller than any anthill.How would you describe the above example？（ ） A: N = not an argument B: A = an argument that is neither valid nor sound C: V = an argument that is valid but not sound D: B = an argument that is both valid and sound