The cause of sleeping ______ was discovered in 1901.
A: illness
B: sickness
A: illness
B: sickness
举一反三
- Which of the pathogen cause sleeping sickness? A: Trypanosoma brucei B: Trypanosoma cruzi C: Mycobacterium tuberculosis D: Escherichia coli
- They discovered the cause of the fire accidentally. They discovered it _________.
- What caused the ____(疾病）？ A: sickness B: sick C: illness D: ill
- They discovered the cause of the fire accidentally. They discovered it ______. A: by chance B: chancily C: fortunately D: luckily
- 什么导致了这个疾病？What the illness？ A: cause B: does cause C: caused D: did cause