该图所示是北半球的一段纬线，M、N分别是某日的昏线、晨线与该纬线的交点。该日两点的经度差为120°，一年中M、N两点有重合于O点的现象。读图完成问题。

小题1:一年中，O点的太阳高度最大值可能为（  ）

A．23°

B．46°52ˊ

C．48°

D．57°小题2:该日M地的昼长为（  ）

A．6小时

B．9小时

C．16小时

D．18小时小题3:该日后，若N点位置向西靠近O点，则太阳直射点（  ）

A．位于北半球，且正向北移动

B．位于北半球，且正向南移动

C．位于南半球，且正向北移动

D．位于南半球，且正向南移动

The woman proceeded gently to tickle that withered chin of seventy, much as it had been that of a four- or five-year old child.

A. much as if it was that

B. much as though it were that
C. much as though it has been that
D. much as though it had been that