单项选择题

Passage Two
Questions 29 to 31 are bused on the passage you have just heard.

A．Protecting roads along the shore.
B．Building on beaches with seawalls.
C．Adding sand to beaches with seawalls.
D．Stopping building seawalls.

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Modern office workers are just like fighter pilots in that both need to monitor data of great complexity.

单项选择题

Passage Two Questions 29 to 31 are bused on the passage you have just heard. 您的浏览器不支持 audio 元素。