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【简答题】
Mr James works at the school Lost and Found.He works very carefully.Every day when he gets a lost thing he takes notes ( 记录 )about it.There are pens, books, school uniforms ( 校服 ), keys and walkmans that students use to listen to music and English.You can also find many other things in the Lost and Found.Most of them are the students’.If you lose your things, it’s easy for you to go to the Lost and Found for help.But you must tell Mr James what it is, its color and the day when you lost it.Mr James is very helpful ( 乐于助人的 ), and you will be happy when you find your lost things there.
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举一反三
【单选题】大静脉的结构特点是()。
A.
三层膜分界明显
B.
中膜中弹性结构发达
C.
中膜中平滑肌发达
D.
外膜厚并有纵形平滑肌
【简答题】静脉的结构特点有哪些?
【单选题】弹簧振子在光滑水平面上作谐振动时, 弹性力在半个周期内所做的功为
A.
B.
C.
D.
0
【简答题】简述静脉的结构特点。
【单选题】静脉的结构特点哪项是错误的
A.
3 层膜界限清楚
B.
管壁较薄而管腔较大
C.
内弹性膜不发达或缺如
D.
中膜薄,平滑肌稀疏
E.
外膜较厚
【单选题】大静脉的结构特点是
A.
三层膜分界明显
B.
中膜的弹性结构发达
C.
中膜内平滑肌发达
D.
外膜厚,并有纵形平滑肌束
E.
外弹性膜明显
【单选题】—Why do you get up so early in the morning, Tony ? —I generally make it a _______ to be up by 7: 00 to read English. [     ]
A.
  plan
B.
  wish
C.
  secret
D.
  rule
【单选题】弹簧振子在光滑水平面上作谐振动时, 弹性力在半个周期内所做的功为
A.
0
B.
C.
D.
【单选题】静脉的结构特点错误的是
A.
三层膜界限清楚
B.
管壁较薄而管腔较大
C.
内弹性膜不发达或缺如
D.
中膜薄,平滑肌稀疏
E.
外膜较厚
【简答题】简述颈部静脉的结构特点及其临床意义。
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