ping命令有很多参数，其中让用户所在的主机不断向目标主机发送数据的参数是（）。

A、-lsize

B、-t

C、-a

D、-ncount

Passage One

Which of the following statements is NOT true of Trinidadian workers who were made jobless in early September

A．They held protests against the government on the street.

B．They became independent cane farmers.

C．They were compensated with a total of 115 million dollars.

D．They were given the chance of retraining for new job careers.