下列叙述正确的是 [ ]
A．纯合子测交后代都是纯合子
B．纯合子自交后代都是纯合子
C．杂合子自交后代都是杂合子
D．杂合子测交后代都是杂合子
答案：B
Of the seven days in the a week, Saturday is said to be the most popular _____ for a wedding in some
countries. [ ]
A. way
B. situation
C. event
D. choice
护理出院处理的要求是什么？
