腭裂术后的饮食要求是()
A.术后半流质
B.术后流质1周后改半流质
C.术后流质2周后改半流质
D.术后1周软食
E.术后1周禁食、静脉补液
参考答案:C
Is there a supermarket around _____ I can buy some Christmas gifts?
A.which
B.what
C.that
D.where
传统光源相比,LED光源有哪些优点?