①若|z1﹣z2|=0，则 z1¯ = z2¯ ②若z1= z2¯ ，则 z1¯ =z2
③若|z1|=|z2|，则z1• z1¯ =z2• z2¯ ④若|z1|=|z2|，则z12=z22
其中真命题的序号是____．
①精美礼器的出土 ②庞大古城遗址的发掘
③ 周围同时期中小型遗址的发掘 ④ 大量海贝的出土
在遗传学上，相对性状是指：同种____、同一性状的不同表现形式．
⑴What colour is her dress ?____ A、It's Mike's .
⑵What time is it now ?____ B、It's white and black .
⑶Whose is this ?____ C、They are apples .
⑷What are they ?____ D、No , she isn't .
⑸Is your mother at home ?____ E、It's five o'clock .
