下列有关《明大诰》说法正确的组合是?（）
①《明大诰》是一本关于刑事方面的法规；
②《明大诰》比《大明律》法律效力略低，主要是惩治不法官吏方面的效力；
③《大明律》中处以笞、杖形的罪行，在《明大诰》中可以处以极刑；
④朱元璋亲自编订《明大诰》，但他死后，《明大诰》就失去了法律效力；
⑤《明大诰》与英美法系的判例法有异曲同工之处

A．Because he'll do his homework.
B．Because he'll be with his friends.
C．Because he doesn't like the party.
D．Because he doesn't know.

A.VOA调的过大
B.接收光功率高于最小过载点导致误码
C.接收端信噪比下降导致误码
D.接收光功率低于接收灵敏度导致误码