单项选择题

To the countries in South-East Asia, building a tsunami monitoring system _________.

A．is what they can not afford
B．is not a practical solution
C．won't cost a lot of money
D．is effective but expensive
<上一题 目录 下一题>
热门 试题

问答题
1．中国即将面临人口的老龄化问题；2．人口老龄化将会带来的问题；3．应该采取什么措施。The Problem of Ageing Population in China
单项选择题
Which of the following is true according to the passage
A．Big waves depend on the intensity of earthquake.
B．Most earthquakes that cause tsunamis happen in the Pacific.
C．Tsunamis often occur along the coast of Indonesia.
D．Trenches at the bottom of the sea create tsunamis.
相关试题