育才学校新教学楼实际投资180万元,比计划节约了20万元,节约了百分之几?
20÷(180+20),
=20÷200,
=0.1,
=10%;
答:节约了10%.
All of us have the desire to visit the three main temples in Athens, especially _______ contains a gold and ivory statue of Athena.
A.the one that
B.one that
C.the one
D.one
可燃气体报警器探头应()进行一次校验。
A.半年
B.一年
C.两年