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A.
B.
C.
D.
参考答案：A
When was ______ that the suggestion was put forward ______ the seven-day Labor Day Golden Week holiday be cancelled?
A．that; that
B．it; which
C．it; that
D．that; what
下列生活事例中，属于化学变化的是[ ]
A.把西瓜榨成汁
B.铁锅生锈
C.把铁丝弯曲成衣架
D.给自行车瘪胎打气
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