问题
选择题
35．I walked out of the cinema, _________I'd never come back to this hell of a place．
A．determining
B．decided
C．to determine
D．to decide
答案
A
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35．I walked out of the cinema, _________I'd never come back to this hell of a place．
A．determining
B．decided
C．to determine
D．to decide
A
，斜面倾角为300。当弹簧处于原长（C点）时，将物块A无初速度地释放，释放后，物块A将在斜面上围绕O点作往复运动。求：