A:统筹兼顾
B:全面协调可持续
C:立党为公、执政为民
D:解放思想、实事求是
已知,如图∠1=∠2,∠3=∠4,求证:BC∥EF.
证明:∵∠1=∠2
∴____∥____ (____)
∴____=∠5 (____)
又∵∠3=∠4
∴∠5=____ (____)
∴BC∥EF (____)
—Is your aunt actress?
—Yes.She's great actress in China.