It was reported that many helicopters were sent there _________the missing passengers.

A．in search of

B．in need of

C．in charge of

D．in time of

关于下面语句的说法正确的是 String[]s=new String[10][]；

A．该语句不合法

B．该语句定义了一个二维数组，它包括10行10列

C．s是一个包含10个数组的数组

D．s中的每一个元素都被设置成""