更多"Many of us may feel air-conditioner"的相关试题:
[填空题] Many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they gave rise to many 【B1】______ health hazards. Much research has looked at 【B2】______ the circulation of air inside a closed environment such as an office building can spread disease or 【B3】______ occupants to harmful chemicals. One of the more widely publicized dangers is 【B4】______ of Legionnaire’’s disease (军团病) , 【B5】______ was first recognized in the 1970s. This was found to 【B6】______ people in buildings with air-conditioning systems in which warm air pumped out of the system’’s cooling towers was 【B7】______ sucked back into the air intake(人口，进口) ,in most cases 【B8】______ poor design. This warm air was, needless to say, the perfect environment for the rapid growth of disease-carrying bacteria 【B9】______ from outside the building, where it existed in harmless quantities. The warm, bacteria-laden air 【B10】______ cooled, conditioned air and was then circulated around various parts of th
A. A．anyhow
B．anyway
C．somehow
D．somewhat
