ing project, in which people's blood and urine(尿) were tested for (37)tracesof chemicals - in this case, three potentially dangerous classes of compounds found in common household (38)productslike face cream, tin cans, and shower curtains. he results- (39)releasedin November in a report called "Is It in Us?" by an environmental groups - were rather worrying. Every one of the participants, (40)rangingfrom an Illinois state senator to a Massachusetts minister, tested positive for all three classes of pollutants. And while the (41)simplepresence of these chemicals does not (42)necessarilyindicate a health risk, the fact that typical Americans carry these chemicals at all (43)shockedJune and his fellow participants.

　　Clearly, there are chemicals in our bodies that don't (44)belongthere. A large, ongoing study conducted by the Centers for Disease Control and Prevention has found 148 chemicals in Americans of all ages. And in 2005，the Environmental Working Group found an (45)averageof 200 chemicals in the blood of 10 new-borns. "Our babies are being born pre-polluted," says Sharyle Patton of Commonweal, which cosponsored "Is It in Us?" "This is going to be the next big environmental issue after climate change.

　　注：本篇文章选自美国的新闻周刊《Newsweek》，曾作为职称英语卫生类C级试题出现。该文专业性较强，但逻辑较为明显。主要考察考生的常用词汇的积累和固定搭配。这篇文章遵循“文难题易”的出题规律，15选10，且单词的正确形式都已给出，在一定程度上降低了题目的难度。 

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