选择题：This fire extinguisher is to be used only in case

题目内容：

This fire extinguisher is to be used only in case of ______________.
A. urgency B. crisis C. immediacy D. emergency

参考答案：

We are going to have a singing party tonight. Woul

We are going to have a singing party tonight. Would you like to join us?-- _____

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关于抛石挤淤的软土处理方法，下面哪种说法是错误的 A.该法主要用于常年积水且不易抽干的地方B.抛填的片石不小于30厘米C.自中线向两侧展开抛填，横坡陡于1：10

The boy is not happy at the new school. He has ________ friends there. A：few B：