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【单选题】
普通钨酸钙增感屏应匹配的胶片是（）A.
正色片
B.
全色片
C.
色盲片
D.
彩色片
E.
感绿片
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【单选题】What is the focus of this passage?
A.
How firefighters carry out their responsibilities.
B.
The proper installation of home smoke detectors.
C.
The detoction of dead-air space on walls and ceilings.
D.
How smoke detectors pr fies in homes.
【简答题】A．The 2uil8ings in the p1th of the fire were 8estroye8. B．Firefighters put it out upon the king's order. C．Londoners stopped it with the water from the river. D．It stopped by itself after it burned al...
【简答题】In the _________ house the firefighters saved a lot of _________ people, but they couldn' t be sent to hospital because of the _________ road.
【单选题】The firefighters on the 35th floor of the north tower of the World Trade Center _________________.
A.
were all exhausted
B.
knew what was happening
C.
were all very hot
D.
knew they had hardly begun their task
【简答题】世界旅游组织在1979年第（ ）届代表大会上正式确定9月27日为世界旅游日。
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