盲探气管插管时,如导管探查受阻,管口呼吸音中断,并可见喉结处隆起肿包,可能是导管
A.打折B.误入咽后间隙C.误入食管D.滑入一侧梨状窝E.进入气管
参考答案:D
The students were studying in____________classroom when, all of ____________sudden,the lights went out.
A.不填;不填
B.a;the
C.the;a
D.the;不填
无线上网卡关闭的业务有()
A.语音
B.短信
C.彩信
D无线上网