手少阴心经的起始穴是（）
A.天池
B.极泉
C.少冲
D.少泽
E.少府
参考答案：B
绝对值不小于3且小于5的所有整数和是( )。
It was hard for him to learn English in a family, in which _____ of the parents spoke the language.
A．none
B．neither
C．both
D．Each
