圆角矩形没弧度:which standard are u studying?什么意思

which standard are u studying?什么意思 Which national person are you? how are u doing ? the products are not to the buyer's standard or are defective in any way which countries are in the area of middle east my taskbar cannot show the programs which are running... which web sites are good to study english? which two are usually women:alto, soprano, tenor, bass? Which of the following assertions is/are correct which of the following materials are composites (more than one)?