问题
选择题
24. Does he have _______ of teaching?
A．many experiences
B．many experience
C．much experiences
D．much experience
答案
答案：D
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24. Does he have _______ of teaching?
A．many experiences
B．many experience
C．much experiences
D．much experience
答案：D
，
间间隙约3mm，
萌出约1／3，
拥挤3mm，前牙覆盖约4mm，覆