下列航海家的远航活动，按其时间顺序排列，正确的是（    ）

①达·伽马  ②迪亚士到达好望角  ③哥伦布首航美洲   ④麦哲伦船队环球航行

根据短文内容，请将单词填写在题号对应的横线上。

    Most people nowadays are so busy with their lives that they do not have time to enjoy a healthy and ____ (balance) diet. For most individuals, as ____ result of eating foods rich in fats and sugar several years, they choose to go on a diet but do not succeed at the end. Be sure to be with a strong ____ (aware) that you are ____ you eat! Therefore, maintaining a healthy diet not only ____ (provide) your body with energy but also numerous health benefits. One is that you will keep a healthy weight and is also the easiest and most ____ (benefit) way in which you can be energetic and protect yourself ____ a number of diseases when growing old. Another benefit is that you will meet your everyday nutritional ____ (require). ____ (basic) speaking, you should ensure that you take the good amount of vegetables, grains, milk and proteins. In most cases, a healthy diet can help you decrease the risk of ____ (get) some diseases like diabetes and cancer.

下列关于声和光的说法，正确的是（　　）​

将一株植物放置于密闭的容器中，用红外测量仪进行测量，测量时间均为1小时，测定的条件和结果如下表（数据均在标准状况下测得，单位mL）请分析后回答下列问题：

（1）在25℃条件下，若该株植物在充分光照下1小时积累的有机物都是葡萄糖，则1小时积累的葡萄糖是____ 克．

（2）在25℃条件下，这株植物在充分光照下1小时总共制造葡萄糖____ 克．

（3）如果一天有10小时充分光照，其余时间在黑暗下度过且昼夜温度为25℃，假定积累的有机物都是葡萄糖，则一昼夜积累葡萄糖____ 克．

（4）如果一天有10小时充分光照，其余时间在黑暗下度过，如果光照时的温度为25℃，黑暗时的温度为15℃，假定积累的有机物都是葡萄糖，则一昼夜积累葡萄糖____ 克．

（5）根据计算，种在新疆地区的同种西瓜比种在江浙一带甜的原因之一是____．