把下面的防腐方法与防腐原理对应起来

a袋装牛奶____A盐渍法、烟熏法

b肉肠____B盐渍法（用盐除鱼中水）

c腊肉____C真空包装法

d果脯____D巴氏消毒法（高温灭菌）

e咸鱼____E脱水法

f肉类罐头____F罐藏法

g干蘑菇____G渗透保存法．

    Many people like spring, because they can go out and do many kinds of activities. We made a survey about the activities that people like to do in spring. Here are the results.
Scott：
    In spring, I often visit my uncle and I like fishing with him. I also like boating and enjoy the beach. Last spring my uncle and I went boating. The dolphins came so close to us. It was very amazing. I hope that I can go there again soon.
Linda:
    My favorite spring activity is gardening (园艺). I think it is relaxing to work in the garden. I grow many flowers in my garden every year. They are so beautiful.
Nancy：
    I love spring. I love going to the beach and spending a whole day there. It is so relaxing to lie on the beach. I also like surfing in the sea.
James：
    I am twelve years old. My favorite spring activity is swimming. I started to learn swimming when I was seven years old. I always have a good time with my friends in the river.

我国当前正在进行税收制度改革，下边的曲线图告诉财政收入我们

山脉是地形的骨架，关于下列图示山脉的名称与地理意义，描述正确的是（   ）

某溶液X中可能含有NO ${}_3^{-}$ 、Cl^﹣、SO ${}_4^{2-}$ 、CO ${}_3^{2-}$ 、NH ${}_4^{+}$ 、Fe²⁺、Fe³⁺、Al³⁺和K⁺中的几种，且所含阴离子的物质的量相等．为确定该溶液X的成分，某学习小组做了如下实验：

则下列说法正确的是（   ）