故造成停风的地点，当停风时间超过1小时必须用不燃材料封闭。
参考答案：错
婴幼儿秋冬季腹泻的最常见病原是（）
A.腺病毒
B.诺沃克病毒
C.轮状病毒
D.埃可病毒
E.柯萨奇病毒
—What about Mr. Wang's speech?
—Wonderful. _____ people went there and were impressed by his speech.[ ]
A. The number of
B. Lot of
C. A number of
D. A lots of
