CAUTION VOLCANIC FUMES ARE HAZARDOUS TO YOUR HEALTH AND CAN BE LIFE-THREATENING VISITORS WITH BREATHING AND HEART PROBLEMS,

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问题 CAUTION
VOLCANIC FUMES ARE
HAZARDOUS TO YOUR HEALTH
AND CAN BE LIFE-THREATENING
VISITORS WITH BREATHING AND
HEART PROBLEMS, PREGNANT WOMEN AND
YOUNG CHILDREN
SHOULD AVOID THIS AREA
What is dangerous in this area?

选项 A、Heavy volcanic fumes
B、Volcanic eruption
C、Volcanic lava
D、Scorching heat

答案A

解析 文中显示"VOLCANIC FUMES ARE HAZARDOUS”,也就是说火山烟雾危险,而不是(B)“火山爆发”、(C)“熔岩”或(D)“高温”,可知正确项是(A)。
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