[单选题]变压器绕组若采用交叠式放置,为了绝缘方便,一般在靠近上下磁轭的位置安放( )。
A.低压绕组
B.高压绕组
C.中压绕组

In many cultures, traditional families, that is, married couples with children, {{U}} (1) {{/U}}. Until a decade ago, that was also the case in the United States. But the U.S. Bureau of Census reports people in more than {{U}} (2) {{/U}} now live in some other arrangements.
For the first time in history, the number of Americans living alone has {{U}} (3) {{/U}} of historically dominant households—married couples with children.
In 1960, 45% of American households {{U}} (4) {{/U}} with children. Today it is less than 25%. In the past 10 years, the number of {{U}} (5) {{/U}} has grown faster than the number of family households.
But the {{U}} (6) {{/U}} that the American {{U}} (7) {{/U}}. Although the rate of married-with-children household is still declining, it is declining {{U}} (8) {{/U}} than during the 1960s and 1970s, and married couples with or without children still {{U}} (9) {{/U}} all American households.