问题
单项选择题
关于结肠的描述，下列错误的是（）
A.升结肠自右髂窝处起于盲肠上端
B.降结肠无系膜
C.排列呈乙字或"M"字形弯曲
D.乙状结肠在左髂嵴处起自降结肠
E.结肠左曲又称脾曲
答案
参考答案：C
解析：结肠是介于盲肠和直肠之间的一段大肠，整体呈方框状，包围在空、回肠周围。呈乙字或"M"字形弯曲的为乙状结肠。
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关于结肠的描述，下列错误的是（）
A.升结肠自右髂窝处起于盲肠上端
B.降结肠无系膜
C.排列呈乙字或"M"字形弯曲
D.乙状结肠在左髂嵴处起自降结肠
E.结肠左曲又称脾曲
参考答案：C
解析：结肠是介于盲肠和直肠之间的一段大肠，整体呈方框状，包围在空、回肠周围。呈乙字或"M"字形弯曲的为乙状结肠。
When you think of American culture, what first comes to your mind? McDonald’s? Coca Cola? Levi’s? Disneyland? Michael Jordan? Julia Roberts? Many people 小题1: American culture is a 小题2: of popular symbols like these. Actually, these symbols are only one 小题3: part of American culture—pop culture. What is pop culture? Well, pop is 小题4: for popular. The origins of pop culture can often be traced to popular movies, television shows, music stars and sports figures. Pop culture is 小题5: promoted by business and advertising. The most 小题6: examples of American pop culture appear among high school and college students. Trends (趋势) 小题7: by famous personalities quickly become part of young people’s 小题8: . American pop culture has spread around the world. One major reason for its 小题9: is that English is a universal language. English is the language of diplomacy, international business and transportation. 小题10: language and culture go together, learning English means becoming 小题11: of English-speaking cultures. Besides, America is a world 小题12: in movies, music and magazines. The kind of American culture 小题13: in those media is pop culture. Finally, pop culture is easy to package and to 小题14: . For that reason, it is easy to “sell” to the world. Many people believe that American pop culture is what American is all 小题15: . Does pop culture 小题16: the true culture of America? Yes and no. Pop culture does 小题17: a portion (比例) of American society — especially the 小题18: young people that are tuned in to the media. But American pop culture is faddish (流行一时的) and 小题19: . If you want to learn about real American culture, you’ll have to go a little 小题20: than McDonald’s.
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