Question

【題目】Old－fashioned phones matter when wireless networks in disasters.

A. turn down B. turn out

C. break down D. break out

Answer 1

【答案】C

【解析】

C

解析　句意為：當無線網(wǎng)絡在災難中出故障時，老式電話起很大作用。turn down關小，拒絕；turn out結果是；break down崩潰，損壞；break out(戰(zhàn)爭、火災等)爆發(fā)。由句意知選項C正確。