问题
选择题
She is honest and trustworthy. I think It's ______no business of hers.
A．absolutely
B．possibly
C．unfortunately
D．desparately
答案
答案：A
句意:她诚实可靠。我想这件事与她毫不相关。absolutely绝对地；完全地；possibly可能地；也许；unfortunately不幸地；desparately拼命地;;厉害地。根据题意，只有A项正确。
，物体A和B的质量分别为
．在弹性限度之内，悬挂平衡．现用一定的力沿竖直方向向上托起B，使两弹簧的长度之和恰等于两弹簧原自然长度之和．试求此时天花板对弹簧作用力F等于多大．