Unfortunately, there is still little _______ of that virus vaccine.
A: breakthrough
B: break
C: breakfast
D: bacteria
A: breakthrough
B: break
C: breakfast
D: bacteria
举一反三
- The vaccine for measles is best characterized by() A: Bacteriocin B: Killed virus vaccine C: Inactivated virus vaccine D: Live virus vaccine E: Recombinant virus vaccine
- ”革兰氏阳性菌” A: Gram-positive bacteria B: Gram-negative bacteria C: Gram-negative virus
- The skin is susceptible to physical injury and to ____by bacteria, virus,etc.
- According to Zhang, the best way to stop the virus is _______ A: to develop a vaccine B: to prevent it
- Exactly which bacteria cause the ______ is still unknown.