两个圆柱底面积和高分别相等,它们体积也相等.______(判断对错)
因为圆柱的体积=底面积×高,
所以当底面积和高分别相等时,两个圆柱的体积也相等,
所以原题说法正确.
故答案为:√.
句型转换。
1. —Can I help you? (作否定回答)
—_________________________.
2. —Would you like me to help you? (作肯定回答)
3. I have made a mistake. I found. (改为含宾语从句的复合句)
I found that _________________________.
4. I don't think you will come back in time. (用didn't改写)
I _____ think you _____ in time.
5. The moon circles the earth. (用told us改写)
The teacher told us that _________________________.
2007年开具的发票存根联和发票登记簿,至少应当保存到( )。
A.2008年
B.2009年
C.2010年
D.2012年