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【简答题】
人体在进行长时间剧烈运动时,运动开始的某一阶段,运动者常常产生一些难以忍受的生理反应,如呼吸困难、胸闷、头晕、心率剧增、肌肉酸痛无力,动作迟缓不协调,甚至产生停止运动的念头等,这种机能状态称为__________. 克服 “极点”后,"第二次呼吸"产生的原因是_______惰性减少,体内______逐步得到清除,机体内环境得到改善,动力定型得到恢复。
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举一反三
【单选题】Simulation analysis is based on assigning a _____ and analyzing the results.
A.
narrow range of values to a single variable
B.
narrow range of values to multiple variables simultaneously
C.
wide range of values to a single variable
D.
wide range of values to multiple variables simultaneously
【多选题】下列各项中,适用5%——35%的超额累进税率计征个人所得税的有( )
A.
个体工商户的生产经营所得
B.
个人独资企业的生产经营所得
C.
对企事业单位的承包经营所得
D.
合伙企业的生产经营所得
【判断题】The animals selected for a procedure should be of an appropriate species and quality and the maximum number required to obtain valid results. Methods such as mathematical models, computer simulation, ...
A.
正确
B.
错误
【单选题】The experimental results the theoretical simulation very well.
A.
valid
B.
validate
C.
validation
D.
validates
【单选题】Multiple simulation tests were performed to verify that the model works as expected, and to test its responsiveness to input parameters. Although the model was presented through application to a synth...
A.
The model does not perform well.
B.
The model is fully validated in the real-world data.
C.
The model is proved to be useful in practice.
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