A—blood type
B—postal code
C—sex
D—height
E—date of birth
F—natiVe place
G—date of availability
H—association
I—health condition
J—place ofbirth
K—marital status
L—Work experience
M—married
N—current address
0—family status
P—ethnic group
( )性别 ( )家庭情况

A．whether animals can think about the past and the future
B．how children learn and what happens when we speak
C．why animals can understand some things more quickly than human beings
D．at what age,a child can speak his language very well