Underthis（）pressuresomeoftherocksevenbecameliquid.

一女性患者，50岁.有风湿性关节炎史，现心悸不安，胸闷不舒，心痛时作，舌质紫暗，脉涩，其治疗应选用

The teachers’union _________ a lawsuit against the district calling for repairing “deplorable” school conditions.

If a substance is dissolved in water or heated ， it may （）a gas.

_____atinthisway,thepresenteconomicsituationdoesn'tseemsogloomy.