清洁各导纸辊表面时应用温水、（）或其它清洗剂清洁。
A.酒精
B.砂纸
C.刮刀
D.铜丝刷
参考答案：A
After the exploration the army got the building_____ and the______ area was also cut off
from the outside.[ ]
A. surrounded；surrounded
B. surrounding；surrounded
C. surrounding；surrounding
D. surrounded；surrounding
胸部X线常见肺脓肿，肺大疱（）
A.腺病毒肺炎
B.毛细支气管炎
C.支气管肺炎
D.葡萄球菌肺炎
E.支原体肺炎
