组织的形成是（    ）的结果。

如图甲所示，将装有热奶（80℃）的奶瓶放入20℃的水中，5min后，水和奶的温度均为40℃，试在图乙中分别画出容器中水的温度和奶瓶中奶的温度随时间变化的大致图象．

我们的生活处处存在化学，请根据要求填写下列空白：

（1）矿泉水中含有人体必需的钙、碘、锌等，这里的“钙、碘、锌等”是指____ （填“分子”、“原子”、“离子”或“元素”）．

（2）6000L氧气在加压的情况下可装入容积为40L的钢瓶中．请从微观的角度来解释这一现象：____ ．

（3）把氮气充入食品包装袋内延缓食品变质，说明了氮气____ ．

A．介词，“用、凭、靠”     B．连词，“来”

C．连词，“因为”     D．连词，“而”

①全石以为底。____

②因以为号焉。____

③以其境过清。____

④卷石底以出。____

⑤衔觞赋诗，以乐其志。____

阅读短文，下列问题

B

    Jilin Province is located(位于) in China's northeast. It has a long winter with snow that can last for seven months a year. Many people go to Jilin for the Ice Lantern Festival and winter sports.

    Jilin also has many natural and historical attractions, including the famous Mount Changbai. 

    The following is one of the top 10 attractions in Jilin.

    Located in the southeast of Jilin City, Jilin Province, Songhua Lake is one of the most famous artificial (人工的) lakes in China. 

    Covering a total area of 550 square kilometers, the lake has a maximum water capacity (最大蓄水量 ) of 10.8 billion cubic meters. The lake, which looks like a string of pearls, is 200 kilometers in length, 10 kilometers at its widest point, and 75 meters at its deepest point.

    The Songhua Lake consists of nine scenery zones, including Wuhu Island, Wolong Pond, Fengwu Pond, Shilong Wall, Hailang Hill, Shuangfeng Ridge, Luotuo Peak,Qingshan Hill and North Heaven Gate. It is a perfect place for people to visit.