[填空题]

We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable.
 For your safety and convenience
To begin the trip, we would like to draw your attention to some safety-related details. These are also explained on the instruction card in the seat pocket in front of you. Seat belts must remain fastened while the "Fasten seatbelts" sign is on. It is advisable to keep them fastened at all times while seated. All flights are non-smoking. The use of mobile telephones is now allowed when the airplane is on the ground. During the flight the use of CD and DVD players is not allowed.
 For your entertainment
To help you enjoy your trip, we provide a range of newspapers. On our MD-11 and Boeing aircraft, we provide music and video programs. On Airbus A 321/320/319, short videos are shown.
 Meals and drinks
During most flights we serve you a tasty meal and drinks. Beer, wine and

[填空题]

We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable.
For your safety and convenience
To begin the trip, we would like to draw your attention to some safety-related details. These are also explained on the instruction card in the seat pocket in front of you. Seat belts must remain fastened while the "Fasten seatbelts" sign is on. It is advisable to keep them fastened at all times while seated. All flights are non-smoking. The use of mobile telephones is now allowed when the airplane is on the ground. During the flight the use of CD and DVD players is not allowed.
For your entertainment
To help you enjoy your trip, we provide a range of newspapers. On our MD-11 and Boeing aircraft, we provide music and video programs. On Airbus A 321/320/319, short videos are shown.
Meals and drinks
During most flights we serve you a tasty meal and drinks. Beer, wine and other drinks are

[单项选择]149 people were aboard Flight 222 when it arrived at Los Angeles from New York City with Chicago as the only intermediate stop. How many people first boarded the flight in Chicago ？（）
(1)170 people were aboard the flight when it left New York City.
(2)23 people from the flight deplaned in Chicago and did not reboard.
A. 条件(1)充分，但条件(2)不充分．
B. 条件(2)充分，但条件(1)不充分．
C. 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D. 条件(1)充分，条件(2)也充分．
E. 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

[填空题]Welcome aboard Dragon air Airlines Flight 121 Hong Kong to Paris. Our flight will take about three hours. We will be flying at an altitude of 3473 meters and the average speed is 903 kilometers per hour.
In order to ensure the normal operation of aircraft navigation and communication systems, mobile phones, toys and other electronic devices throughout the flight and the laptop computers are not allowed to use during take-off and landing.
We will take off immediately, please be seated, fasten your seat belt, and make sure your seat back is straight up, your tray table is closed and your carry-on items are securely stowed in the over-head bin or under the seat in front of you. This is a non-smoking flight; please do not smoke on board.
The chief purser Adam Smith with all your crew members will be sincerely at your service. We hope you enjoy the flight! Thank you!
This announcement is broadcast before the plane is to (46) .
The flight is from (47)