“街头拦人”调查是一种()
A.概率抽样
B.方便抽样
C.网络抽样
D.立意抽样
参考答案:B
某晚报“百姓热线”一周接到热线电话记录为:奇闻铁事5%,道路交通20%,环境保护35%,房产纠纷15%,建议与表扬10%,投诉15%。
(1)根据以上数据制成条形统计图和扇形统计图;
(2)由图中的数据,说明你从中获得的信息。
句型转换
She spoke louder so that she could be heard by people at the back of the big hall.
She spoke louder by people at the back of the big hall