Stocks are regarded as a good long-term()
Stocks are regarded as a good long-term()
Freshwater fish stocks are vulnerable or endangered because of ______.
Stocks are regarded as a good long-term()
在stocks区颗粒的沉降速度正比于()。
Stocks are regarded as a good long-term()
你是一个投资经纪公司的数据库开发者.公司有一个stocks数据库,包含currentprice和pastprice表.投资股票当前的价格被储存在currentprice表.先前的股票价格被储存在pastprice表.这些表如下所示: currentprice表中的所有行在营业日结束时被更新,即使股票价格自从上一次更新以来没有改变(也要更新).如果股票价格从上一次更新以来已经改变,那么必须在pastprice表中插入一行.你必须为数据库设计一个方法自动执行这个动作.你该怎么办?()
At the beginning of the day, the prices of stocks X and Y are the same. At the end of the day, the price of stock X has increased by 1/20 of its original price and the price of stock Y has decreased by 1/20 of its original price. The new price of stock X is what fraction of the new price of stock Y?