题目

The common cold is the world’s most widespread illness, which is a kind of plague (疫病). The most widespread mistake of all is that colds are caused by cold. They are not. They are caused by viruses(病毒) passing on from person to person. You catch a cold by coming into contact, directly or indirectly, with someone who already has one. If cold causes colds, it would be reasonable to expect the Eskimos to suffer from them forever. But they do not. And in isolated Arctic regions explorers have reported being free from colds until coming into contact again with infected people from the out在1966年召开的联合国大会上，加拿大从以前追随美国投票反对恢复中华人民共和国的席位变为弃权。这表明A. 中国外交的冰封局面已被打破 B. 加拿大已经有意缓和中加关系C. 加拿大外交逐渐摆脱美国干预 D. 中加在联合国里达成一定共识