什么是广告审美的根本性规律()
A、功利性
B、实用性
C、真实性
D、重复性
参考答案:C
He didn’t study hard, so he was afraid ______ in the exam.
A.fail
B.to fail
C.failing
D.failed
决定曹操和袁绍争霸胜负的关键战役是?