第7题: [单项选择]He called this an insult to the professional _________ of teachers and declared that the obligation of the U.S. labor movement is to improve the status of teachers. A. humidity B. commodity C. integrity D. liability 参考答案:C 答案解析:[句意]他将这称之为对教师职业信誉的污辱,声称美国劳工运动的责任是要提高教师的地位。
[辨析]名词辨义。humidity意为“湿度,潮湿,湿气”,如:atmospheric humidity (大气