按9-2串顺进行操作时,在正常情况下,当推完21号时,下一个应推()号。
A.11号
B.31号
C.22号
D.32号
参考答案:B
—_____________________?
—She is a nurse.
A.Who is your mother?
B.Is your mother a nurse?
C.Where is your mother?
D.What does your mother do?
喉癌分为哪几型?各型的X线表现如何?