在桥面上作业时应注意桥面及人行道上,不准有露尖的铁钉。
参考答案:对
句型转换。
1. My family like to play checkers together. (就画线部分提问)
____________ ____________ your family ____________ to do together?
2. I often go to a park to fly kites. (变一般疑问句,并作否定回答)
____________ you often ____________ to a park to ____________ ____________?
____________, ____________ ____________.
下列现象中,能说明分子在做无规则运动的是: [ ]
A.春天:春江水暖鸭先知
B.夏天:满架蔷薇一院香
C.秋天:数树深红出浅黄
D.冬天:纷纷暮雪下辕门