His photographs of slums ___________ far more than words.
A. confronted
B. conveyed
C. displayed
D. contradicted
查看答案
正常人肺循环阻力的范围是
A. 350～450dynes·sec/cm5
B. 50～150dynes·sec/cm5
C. 10～50dynes·sec/cm5
D. 250～350dynes·sec/cm5
E. 150～250dynes·sec/cm5
The manager promised in his address to the working staff to ___________ the success of last year's profits.
A. accelerate
B. repel
C. duplicate
D. enlarge
The author's main purpose of writing the passage is ________.
A. to explain the specific functions of various hormones
B. to provide general information about hormones
C. to explain how the term "hormone" evolved
D. to report on experiments in endocrinology
关于慢性缩窄性心包炎的病理生理改变，下列哪项错误
A. 心脏的舒张功能受损
B. 搏出量减小
C. 心肌收缩力减弱
D. 静脉血回流受阻
E. 左心后负荷增加
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