Is that well the ____________________of all the cases of infection?
A: sacrifice
B: resource
C: sauce
D: source
A: sacrifice
B: resource
C: sauce
D: source
举一反三
- All criminal cases commence in the ________, but not all cases are tried there.
- He _______________ all the hard times. A: see me through B: saw me through C: sacrifice to D: sacrifice for
- The main infection source of epidemic type B encephalitis virus____________
- What kind of ________ do you use for Peking Duck? (source; sauce)
- The computer laboratory is an essential ( ) for students. A: resource B: reinforce C: source D: force