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问题
单项选择题
由正中神经和尺神经共同支配的肌为
A．指深屈肌
B．指浅屈肌
C．尺侧腕屈肌
D．掌长肌
E．桡侧腕屈肌
答案
参考答案：A
选择题
—I ______ the amusement park twice. How about you?
—Never. I hope to visit it soon.
A. have gone to
B. have been to
C. have gone
D. have been
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名词解释
渐减渐增光照法
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