题目内容

呕血最常见的疾病为（）

A. 消化性溃疡
B. 食管胃底静脉曲张破裂
C. 急性糜烂性出血性胃炎
D. 胃癌
E. 肺炎

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当病人出现脉搏细弱、血压下降、呼吸急促、甚至休克时，提示出血量占血容量的（）

A. 10-15%
B. 15-20%
C. 20-25%
D. 30%以上
E. 5%

I'm going to ____ basketball.

A. play
B. to play
C. playing
D. played

I really need to ___ shape again.

A. get
B. to get
C. getting
D. got

I used to ___ basketball in high school.

A. playing
B. played
C. plays
D. play