5. Some bacteria and viruses have developed ways of avoiding ______ system defenses and causing sickness.
(A)political
(B)commune
(C) immune
(D)economical

答案：登入後查看
統計： A(12), B(16), C(150), D(4), E(0) #1889756

詳解 (共 2 筆)

#3049965
Some bacteria and vi...
(共 193 字，隱藏中）
前往觀看
9
3
#3721626
....免疫的
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0