450个百分之一组成的数是4.5。[ ]
要到微信小程序或APP查看答案哦。
实在点不开答案，可以分享到微信，
在微信里面查看答案。
APP具体操作流程为：
用所给动词的适当形式填空。
1. Many people attended his wedding, ____ (include) two foreigners from Sydney.
2. He will have his house ____ (repair), for the rainy season is coming.
3. The English ____ (speak) at that time was quite different from the English ____ (speak) today.
4. In winter he had to wear a heavy coat and put his feet in a box ____ (keep) warm.
5. England, America, Canada and Australia are all English ____ (speak) countries.
6. Very often, people from ____ (neighbour) towns can speak a little different dialect.
7. Sometimes even children can play a very important part in ____ (make) decisions about family affairs.
8. At the age of fourteen, he left his village school and taught himself while ____ (work) in a bank
设等差数列an的前n项之和为Sn，已知S10=100，则a4+a7=（ ）
|
一人把20000元分成两部分，分别存入两银行，利率分别是6%与8%。到年终时，该存款入总共得到1440元利息收入，问两种存款的比例是多少( )
A．2:3
B．3:8
C．2:5
D．3:5
房间隔缺损（）
A.听诊在胸骨左缘第2～3肋间有Ⅱ级收缩期喷射性杂音，无震颤
B.听诊在胸骨左缘第3～4肋间有Ⅳ级粗糙的全收缩期杂音，向周围传导，有震颤
C.听诊在胸骨左缘第2肋间有连续性机器样杂音，向颈部传导，有震颤
D.听诊在胸骨左缘第2肋间有Ⅲ级喷射性收缩期杂音，向颈部传导，有震颤
E.听诊在心尖部有Ⅲ级收缩期杂音，向左腋下传导，有震颤
防爆电气设备表面采取措施防止粉尘堆积时，其允许最高表面温度为（）。
A.80℃
B.120℃
C.150℃
D.450