水位升高3m时水位变化记作+3m,那么-5m表示______.
由于“升高”和“下降”相对,若水位升高3m记作+3m,则-5m表示水位下降5m.
阅读短文,根据提示写单词。
My Summer Holidays
Hello. I'm Li Lei. I'm 13 years old. I'm from Shaoxing. I like___________ (周一) best because we have
art. I like ___________ pictures (画画). And my favourite ___________ is summer because we have summer
holidays. In the summer holiday I often have art lessons, ___________ to music and swim ___________ my
friends. Sometimes I take trips.
In the 2008 summer holiday, I ___________ to Beijing. I watched the 2008 Olympic Games. It was great.
First I visited Water Cube. There I saw many sports stars. I ___________ many pictures. Then I visited Bird's
Nest. It was very very big.
This summer holiday, I'm going to Shanghai. I'm going to ___________ (吃) good food and visit the 2010
Expo.
空中充值业务是指代理商利用账户间的(),为客户进行话费充值、缴费的充值、缴费方式。空中充值业务适用于中国移动()、()、()客户。业务开放范围为()。空中充值业务为客户的单次充值金额为()元的倍数,最低为()元,最高为()元。代理商作为空中充值捆绑手机号码可以是()品牌。代理商在省内采用空中充值方式为客户充值过程中产生的通信费用()。代理商在省内查询其“空中充值”账户余额和充值交易记录产生的通信费用()。空中充值语音接入号码为()。