【简答题】Tsunami warning system is tested If he, the founder of the Hawaiian Volcano Observatory, were alive, Thomas Jaggar would be proud of the U.S. tsunami warning system after Friday’s devastating earthqua...
【单选题】小学阶段的数学课程学习划分为____个学段。
【单选题】We plan to expand ( ) of the pre-warning system, and a comprehensive network is the final goal.我们计划扩展预警机制的范围,最终目标是建立一个综合的网络。
【单选题】A detector is to the warning system what
A.
an engine to the locomotive.
B.
an air-conditioner to the limousine.
C.
a dust jacket to the book.
D.
a remote control to the TV set.