给加下划线的字选择恰当的解释,把序号填在括号里。
在这次作战中,他身负重伤。( )
A:担负
B:遭受
C:背
D:违反
如图所示,已知一次函数 y=-x+7与正比例函数y= 43 x的图象交于点A,且与x轴交于点B,求点A和点B的坐标.
类推是化学学习中常用的思维方法,以下类推结果中正确的是( )
根据句意和首字母提示完成下列句子。There are sixty m____ in an hour.He is ill, and his i____ makes us feel sad.A lot of t____ are visiting the Great Wall, so it is very crowded.Good food and e____ help me to study better.It is n____ to eat a balanced diet.