A.a new and more attractive hypothesis was suggested
B.no research was reported that supported the hypothesis
C.research results provided evidence to counter the hypothesis
D.the hypothesis was supported only by Szechtman's study, and not McGlashan's
E.the level of technical expertise in the field of hypnosis research did not permit adequate testing of the hypothesis
第3题
踩水的腿和臂的配合是两腿同时蹬夹几次两手做几次划水动作?
A.手腿各一次的配合
B.腿二次手一次的配合
C.手二次腿一次的配合
D.无次数要求随意的配合
第9题
哪种泳姿是身体仰卧水中,两腿同时向后蹬夹水,两臂在体侧同时向后划水?
A.抬头爬泳
B.侧泳
C.仰泳
D.反蛙泳
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