I was unaware of the critical points involved in this issue, so my choice was quite
A. arbitrary
B. rational
C. melancholy
D. unreasonable
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The______ photograph is wonderful, which arouses great interests among the students.
A. aerial
B. aerospace
C. adverse
D. survival
By tuning this knob to the right you can______ the sound from this radio.
A. amplify
B. enhance
C. magnify
D. retard
不符合湿性坏疽的描述足
A. 合并腐败菌感染
B. 具有恶臭味
C. 常有全身中毒症状
D. 坏疽组织呈污秽黑褐色
E. 坏死组织与健康组织之间界限清楚
心交感神经对心肌效应的主要机制是
A. 心肌细胞膜上Ca2+通道开放概率增加
B. 减慢自律细胞4期的内向电流
C. 使复极相K+外流减慢
D. 增加肌钙蛋白的Ca2+亲和力
E. 不应期延长
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