In the Australia's flag, the stars are _

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问题选择题

In the Australia's flag, the stars are ____________.[ ]

A. blue

B. white

答案

答案：B

选择题

They have been skating ______. [ ]

A. for three hours ago

B. since three hours ago

C. three hours ago

D. since three hours

单项选择题

下列哪种情况按建筑物自然层计算面积______。

A．室外楼梯间
B．电梯井
C．建筑物内门厅
D．穿过建筑物的通道