问题
选择题
The boy was ______ frightened ______ move.[ ]
A. such, that
B. enough, to
C. so, that
D. too, to
答案
答案：D
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The boy was ______ frightened ______ move.[ ]
A. such, that
B. enough, to
C. so, that
D. too, to
答案：D
，g为重力加速度，人对电梯的压力为（ ）
