What is the number of wrist osteite at 5 years of age?( )
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The average height of newborn infant is:( )
A. 42cm
B. 46cm
C. 50cm
D. 52cm
What time does physiological weight loss occur generally?( )
A. The first week after birth
B. The second week after birth
C. The third week after birth
D. The fourth week after birth
Squatting is a very important feature of : ( )
ASD
B. VSD
C. PDA
D. TOF
A boy, 6-years-old, 20kg, heart examination:3/6 systonic murmur in 2~3 rib left along breastbone, P2 strengthen, and fixed splitting , the most possible diagnosis is:( )
ASD
B. VSD
C. PDA
D. TOF