选做题:
你能猜出下面谜语的谜底是哪个成语吗?
1.一手拿针,一手拿线。( )
2.七被二除。( )
选做题:1.望眼欲穿2.不三不四
— Thank you very much.
— ________________[ ]
A. Thanks a lot.
B. That's very well.
C. You're welcome.
与原发性肺脓肿发病有关的因素是()。
A.误吸
B.呼吸道防御功能降低
C.病原菌
D.鼻咽口腔化脓病灶
E.糖尿病