问题
选择题
This pencil is ______ that one.
A．so long as
B．as longer as
C．longer than
D．not as longest as
答案
答案：C
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This pencil is ______ that one.
A．so long as
B．as longer as
C．longer than
D．not as longest as
答案：C
，覆盖5mm，磨牙远中尖对尖关系，上颌拥挤6mm，下颌拥挤6.5mm