第22题: [单项选择]They demand to set up an organization flexible enough to cope with any emergency. A. portable B. valiant C. trivial D. mobile 参考答案:D 答案解析:[解析] 本题中,flexible的意思是“柔韧的,灵活的”。四个选项中,mobile的意思是“可移动的,机动的”,如:The mobile medical team will soon be her