下列骨、关节和肌肉的模式图中，正确的是（    ）

阅读下面材料，回答问题。

材料一：舟师（指海上船只航行的管理、技术人员）识地理，夜则观星，昼（白天）则观日，阴晦（指阴天）则观指南针。──北宋朱彧《萍可谈》

材料二：渺茫无际，天水一色，舟舶来往，惟以指南针为则。昼夜守视惟谨（谨慎），毫厘之差，生死系矣。──南宋赵汝适《诸蕃志》

材料三：宋朝的海外贸易超过了前代，成为世界上从事海外贸易的重要国家。……中国商船的踪迹，近至朝鲜、日本，远达阿拉伯半岛和非洲东海岸。──人教版《中国历史》七年下册

请回答

Besides calling 120, here is what you should do when no one is around to help.

If you get lost, you may stay where you can be seen clearly and try your best to have a rest. In a wide open area, make a colorful cross out of rocks to show where you stay.

When you choke at home, make a sudden hit against the back of the chair. If you can't breathe after six tries, call 120. Leave the telephone open until help arrives.

Use your hand or a scarf, or any dry cloth you can find, and push down on the wound until the blood stops running. Don't put the cloth around your leg tightly(过紧), or you may lose your foot.

When a fire breaks out, you must move close to the floor. Cover your mouth and nose with a wet towel, make you wet from head to foot if possible and find a safe place outside.