在遗传基础与环境因素的共同作用下宿主易于或不易于患病的属性变量称为E．
Who were killed in an attack to a Jewish settlement in Gaza yesterday？
A. Three Hamas militants.
B. Three Palestinians.
C. One Chinese and two Palestinians.
D. Three Israelites.
What was the man's complaint about the psychology professor？
A. He doesn't talk to the students.
B. He is a nice guy but he is never happy.
C. He is always talking to himself.
D. Too boring and is difficult to understand.
微信支付 
支付宝支付