用科学方法编制了智力测验的第一人是（）

Each year in the United States, many black teenagers _______ of school, either because they cannot keep up or they have to work to support their family.

人们对初恋时的第一次约会往往记忆犹新，这说明了信息提取的有效性依赖于()

Attendance at football matches have _____ since the coming of television.

PC机主机箱的后面的COM接口的中文意思是()。

The engine has broken and the boat is ______ on the water.

用户想要拨号上网得先找一个 ( )。

The terrible noise is ______ me mad.

IPv6分组的流标记的位数是()。

Let's drink _______ Dicks' success in business.