42. When do most outbreaks of swine flu happen?
(A) They tend to happen on warm days.
(B) They solely happen in late winter.
(C)They mainly happen in the late fall and winter.
(D) It depends on when the outbreaks will affect humans.

答案：登入後查看
統計： A(12), B(14), C(255), D(28), E(0) #934435

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B2 · 2019/11/28

#3693256

outbreaks 爆發[（+of）]；...

(共 685 字，隱藏中）

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B1 · 2019/03/02

#3222323

大多數豬流感爆發何時發生？

（A）它們往往發生在溫暖的日子。

（B）它們完全發生在冬末。

（C）它們主要發生在秋末和冬季。(正確,答案在第7行--but most outbreaks occur during the late fall and winter months)

（D）這取決於爆發何時會影響人類。