704-J/JA向201-E送工艺冷凝液的作用是（）。
A.吸收
B.液封
C.防结晶
D.保温
参考答案：B
All their attempts to rescue the child from the burning building were ______．He dies soon afterwards．
A．in place B．in return C．in vain D, for
言脏腑之阴阳，脾为
A．阴中之阳B．阴中之阴C．阴中之至阴D．阳中之阴E．阳中之阳
