c.

英文解釋：

名詞 c.:

1. a degree on the centigrade scale of temperature
   同義詞：degree centigrade, degree Celsius, C
2. the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second
   同義詞：speed of light, light speed, c
3. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
   同義詞：deoxycytidine monophosphate, C
4. a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
   同義詞：cytosine, C
5. an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
   同義詞：carbon, C, atomic number 6
6. ten 10s
   同義詞：hundred, 100, C, century, one C, centred
7. a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second
   同義詞：coulomb, C, ampere-second
8. a general-purpose programing language closely associated with the UNIX operating system
   同義詞：C
9. (music) the keynote of the scale of C major
   同義詞：C
10. the 3rd letter of the Roman alphabet
    同義詞：C, letter c
11. street names for cocaine
    同義詞：coke, blow, nose candy, snow, C

形容詞 c.:

1. being ten more than ninety
   同義詞：hundred, one hundred, 100, c