问题
选择题
_____ is known to all, China will be an ______ and powerful country in 20 or 30 years' time. [ ]
A. That; advancing
B. This; advanced
C. As; advanced
D. It; advanced
答案
答案:C
_____ is known to all, China will be an ______ and powerful country in 20 or 30 years' time. [ ]
A. That; advancing
B. This; advanced
C. As; advanced
D. It; advanced
答案:C
小明同学学习完“简单机械”一课后,对各种剪刀进行了搜集调查,形成了下列调查表.请你将表中内容补充完整,(1)______(2)______(3)______并分析、比较、归纳得出结论______.
名称 | 用途 | 实物图 | 刀把长度 | 刀口长度 | 用力情况 | 特点 |
缝纫剪 | 剪布料 | 短 | 长 | 费力 | 一次可剪较长一段布 | |
理发剪 | 剪头发 | 短 | 费力 | 一次可剪较多头发 | ||
铁匠剪 | 剪铁皮 | 长 | 短 | 能剪坚硬铁皮 | ||
修枝剪 | 剪花枝 | 长 | 短 | 省力 |