看拼音,写词语。
dòu fu
jì rán
mò shuǐ
hài xiū
____
Linda needn't________her parents any more—she could be entirely independent by working as a nurse.
如图甲所示,石料在钢绳拉力的作用下从水面下方以恒定的速 度上升,直到全部露出水面。图乙所示是钢绳拉力F随时间t变化的图象,若不计水的摩擦力,求:(g取10牛/千克)
听下面一段独白,请根据所听内容回答四个问题。