题目

Little Women is Louisa May Alcott’s most famous novel. The novel follows the 1 of the four March sisters-Meg, Jo, Beth and Amy-and is based on the writer’s own 2 of growing up with her three sisters during the American Civil War（ 1861-1865 ） . The main theme in the story is the importance of 3 . Other themes include the need to work and self-improvement. When the story begins the sisters are complaining because they are 4 and have to work. Their mother says that they mustn’t spend money on pleasure 5 there is a war and everybody must help. Their father is in the army. In the l11．一定质量，质量分数为20%的盐酸溶液中加入足量的水pH值小于7；如果是氢氧化钠溶液，加入足量的水则pH值大于7；如果是氯化钠溶液，加入足量的水则pH值等于7．（以上填空可选“等于7”、“大于7”、“小于7”）