路肩堆放的砂石料，用料单位应经常检查、整理，严禁侵入限界。
参考答案：对
Experts think that the recently discovered painting may be __________ Picasso, through which
people can have ___________ better understanding of Picasso.[ ]
A. /; a
B. a; a
C. /; /
D. a; the
今年冬天可能会下雪．______．（判断对错）
