当汽包压力突然下降时，由于炉水饱和温度下降到压力较低的饱和温度，炉水大量放出热量来进行蒸发，使汽水混合物体积膨胀，水位上升，形成（）。
参考答案：虚假水位
再生障碍性贫血符合哪种情况（）尿毒症符合哪种情况（）重型珠蛋白生成障碍性疾病符合哪种情况（）
A.MCV（fl）80～92，MCH（pg）27～31，MCHC（g/L）320～360
B.MCV（fl）92，MCH（pg）31，MCHC（g/L）<320
C.MCV（fl）92，MCH（pg）31，MCHC（g/L）320～360
D.MCV（fl）<80，MCH（pg）<27，MCHC（g/L）<320
E.MCV（fl）<80，MCH（pg）<27，MCHC（g/L）320～360
根据句意，用括号里所给单词的适当形式填空。
1. He is friendly to his classmates, and has made many______(friend) here.
2. After two days off on weekends, we always feel very ______(relax).
3. —What about ______ (have) a farewell (再见) party after the exam?
—Sounds great.
4. Rich or poor, young or old, we all have problems. And unless we deal with them,
we can _____(easy) become unhappy.
5. —Excuse me. Where's Mr Wang?
—He _____ (play) football on the playground with his students.
