兰兰和娜娜两人在上体育课时踢毽子,兰兰踢了113下,比娜娜多踢了28下,两人一共踢了多少下?
113-28+113,
=85+113,
=198(下);
答:两人一共踢了198下.
_________ advertisements are of great help, I don’t think we should entirely rely on them.
A.Since
B.While
C.Because
D.As
试比较龟板与鳖甲、桑叶与菊花性能、主治的异同。