Antarctica receives more solar radiation than does any other place on Earth, yet the temperatures are so cold and the ice cap is reflective, so that little polar ice melts during the summer; otherwise, the water levels of the oceans would rise 250 feet and engulf most of the world’s great cities.
is reflective, so that little polar ice melts during the summer; otherwise, so that表目的,错/句子联系不紧密/要注意到未划线的是虚拟啊/不平行
is so reflective that little of the polar ice melts during the summer; were it to do so,
so reflective that little polar ice melts during the summer, or else不平行/句子不完整/or else 错C首先破坏了平行结构:A be so X and B be so Y中两个be动词保证了结构的平行,因此不能省略第二个,况且两个动词的单复数不一致;其次,破坏了so ... that结构,or else在这里不知所云。
reflective, so that little of the polar ice melts during the summer, or so that表目的,错/little of错/句子不完整/不平行/用or表达虚拟错,后面是另起一句的。
reflects so that little of the polar ice melts during the summer; if it did so that表目的,错/ little of错/句子不完整/不平行/代词指代错
So dogged were her investigations of the garment industry, and so persistent her lobbying for wage and hour reform, that she was first recruited by Gov. Al Smith, and later by Gov. Franklin D. Roosevelt, to work within New York State government, rather than against it