阿摩線上測驗
30.If you carry keys, knives, aerosol cans, etc., in your pocket when you pass through the security at the airport, you may __________ the alarm, and then the airport personnel will come to search you.
(A) let on
(B) let off
(C) set on
(D) set off
答案：登入後查看
統計： A(16), B(10), C(12), D(16), E(0) #666400
統計： A(16), B(10), C(12), D(16), E(0) #666400
詳解 (共 1 筆)
柯文容
#1488040
aerosol 噴霧器
set off v.出發,動身,使爆炸,引起,使爆發,抵銷,分開,襯托
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