民用航空适航管理规定由()制定.
A.国务院
B.民航局
C.适航司
参考答案:B
-Where is Tom?
-I heard him with our English teacher when I passed the teachers' office.[ ]
A. talks
B. talked
C. talking
D. to talk
农药中毒患者,医生在向院里报告后是否需要填写中毒事故登记本。()
A、需要
B、不需要