材料一：南海很早就出现于我国的古籍中，早在《后汉书》和三国时期的《南州异物志》以及宋代的《太平御览》都有对南海的记载，勤劳的中国人民通过航海实践发现了南沙群岛。唐、宋以来，中国人民已在南沙群岛生活和从事捕捞等生产活动。宋代，中国将南沙群岛命名为万里石塘；在此之前的汉代，泛称包括南沙群岛在内的南海诸岛为崎头；在此之后至清代，又有万里长沙、千里石塘、石塘等名称。明、清时代，中国政府明确将南沙群岛划归广东琼州府（今海南省）管辖。

材料二：7月16日，菲律宾国防部发言人在一条短信中说，“中国政府不断歪曲事实，并试图误导善良的中国人民”。对于菲律宾军方称中国政府误导“爱好和平的中国人民”，你怎么看？76.4%的受调查者认为“这种说法荒唐可笑”。19.8%的人认为这是“菲军方编造谎言博同情。”

香港和澳门有许多相似的地理特征，但是不包括（　　）

如图所示，细绳长为L，吊一个质量为m的铁球（可视为质点），球离地面的高度h=2L，绳所能承受的最大拉力为1.5mg，绳的上端系一质量不计的环，环套在光滑水平杆上，现让环与球一起以速度v= $\sqrt{gL}$ 向右运动，在A处环被挡住而立即停止，A离墙的水平距离也为L，求：

下列句子中标点符号使用完全正确的一句是（   ）

    Wouldn't it be funny if your mum said to you, "It's time for bed, honey. It's almost November!" Well, if you were a baby bear, your mother might let you know it's time to go into a deep sleep around October.

    That "deep sleep" is called "hibernation (冬眠)". When it gets cold, bears have to go into hibernation. By taking this long sleep, they can get through the cold months when the food, like berries (浆果) and nuts, cannot be found easily.

    Have you ever heard someone say that they are as hungry as a bear? Bears need to eat a lot of food before hibernating. They eat so much that they may put on forty pounds of fat in a week. During the winter "bears will live off the fat stored in their bodies. Bears are able to do that because their bodies use a lot less energy during hibernation. Their heartbeats slow down, their breathing slows down, and their body temperature drops.

    If you were going to sleep all winter, wouldn't you want to be in a safe and protected place? That is what a bear wants, so it looks for a cave to sleep in. It makes a bed using grass, leaves and twigs (嫩枝). The bear usually starts to hibernate as early as October and doesn't wake up until April or May. By the time the bear wakes up, it will have lost much of the fat. But spring time will bring much food to enjoy until it is time to hibernate again in the autumn.