单项选择题

A.centreB.lowerC.A+BD.A o rBWhen we hoist national flag……

When we hoist national flag together with other flags, we should keep the national flag in the （）place.

A.centre
B.lower
C.A+B
D.A o rB

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单项选择题We can’t hoist （）national flag.

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A.adjusted
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A.tide
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A.winch
B.radar
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D.pilot ladder