A:解放思想,实事求是
B:动中有静,静中有动
C:近朱者赤,近墨者黑
D:日有所思,夜有所梦
⑴朋友____
⑵I am ____
⑶中国____
⑷Britain____
⑸America____
⑹class____
⑺Come to the front ____
⑻Come from____
⑼Go back to your seats.____
形近字组词
挟____ 遭____ 灾____ 孕____ 摩____
携____ 糟____ 灭____ 奶____ 魔____
设变量x,y满足约束条件x≥0x-y≥02x-y-2≤0则z=3x﹣2y的最大值为( )