在中华人民共和国飞行情报区内飞行，航空器必须按照批准的航路、机场飞行。

在中华人民共和国飞行情报区内飞行，航空器必须按照批准的航路、机场飞行。
A、AllaircraftflyingwithintheFIAsofthePeople'sRepublicofChinaarerequiredtooperatealongtheapprovedairwaysandatthedesignatedairports.
B、AllaircraftflyingwiththeFIAsofthePeople'sRepublicofChinarequiredtooperatealongtheapprovedairwaysandatthedesignatedairports.
C、AllaircraftflyingwiththeFIRsofthePeople'sRepublicofChinarequiredtooperatealongtheapprovedairwaysandatthedesignatedairports.
D、AllaircraftflyingwithintheFIRsofthePeople'sRepublicofChinaarerequiredtooperatealongtheapprovedairwaysandatthedesignatedairports.
正确答案：D