冻精的解冻温度以()最合适。
参考答案:38—40℃
该病的扩散方式有
A.直接蔓延
B.淋巴结转移
C.血行播散
D.胃内转移
E.种植转移
You can hardly imagine the difficulty the woman had________ her children.
A.brought up
B.to bring up
C.bringing up
D.to have brought up