个人住房按揭贷款应坚持的原则有（）。
A.部分子筹
B.有效担保
C.专款专用
D.按期偿还
参考答案：A, B, C, D
—The old man is ill. He ________ to the hospital at once.
--Don’t worry. A doctor _________to come already.
A．must be sent , has asked
B．must send, have asked
C．must be sent, has been asked
D．must send, have been asked
当归在苏子降气汤中作用是
A．补血养肝，和血调经B．补血养肝，护正祛邪C．养血活血，扶正祛邪D．养血润燥，止逆下气
