对于肝脏CT解剖，描述正确的有（）
A.肝静脉进入下腔静脉的部位称为第二肝门，约平第3腰椎
B.肝静脉分为肝右、肝左、肝中静脉三支
C.肝静脉支走行于肝脏叶或段间裂内，可以用肝静脉划分肝叶、肝段
D.胸主动脉的左后方有半奇静脉，右后方有奇静脉，奇静脉的前方有胸导管
E.第二肝门的左侧可见食管影，食管后方为胸主动脉
参考答案：B, C, D, E
| 阅读理解。 | |||||||||||||||
| What makes a successful speech? First, you should have a good speech script (稿子) so that your ideas and language can attract people's attention. And some skills are necessary, too. Here are some suggestions on giving great speeches: ◆Beat nerves Relax yourself before and when making a speech. Practice your openingsentence three or four times. This will help make a sure start and a successful speech. When you stand on the stage, think of the audience (观众) as your family members and friends. ◆Keep it natural Natural body languages will help your speech: smile, stand straight and look at the audience. Do not drop your head or play with a pen. Also, dressing yourself nicely will help the audience feel respected. ◆Pace and pause (节奏和停顿) Pace and pause add color to your speech. Speak fast enough to keep people excited and slowly enough for people to fully understand you. After an important point, pause for a moment. It'll change the atmosphere (气氛) in the audience. | |||||||||||||||
Tips on giving speeches
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