【单选题】在杂合体ABY/aby中,已知基因a、b之间的交换值为15%,b、y之间的交换值为30%。该杂合体可产生配子类型
【简答题】B aby boomers refer to those born in .
【单选题】The baby boomer generation is made up of the period _____.
【简答题】On what situation will Robert contact the office of Ms. Pare Hill? He will contact the office______if he hasn't received any message from them.
【单选题】The "Baby Boomer" generation refers to those born in ______?
A.
the years following WWII
B.
the years following WWI