填空题

We are all concerned for the (secure) of the passengers on the aircraft.

【参考答案】

security
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填空题
Whether or not the new plan will yield any positive results (remain) to be seen.
单项选择题
A．A single room.B．A double room.C．A single room and a double room.D．Two single rooms.
A．A single room.
B．A double room.
C．A single room and a double room.
D．Two single rooms.
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