计算机网络的特点是共享计算机硬件、软件及数据等资源。( )
参考答案：对
庆丰农药厂把30000千克的农药装袋．先装了500袋，每袋50千克．剩下的装小袋，每袋装25千克．250个小袋够装吗？
Jane, you often get ill, so you should ______ your health. [ ]
A. look for
B. look at
C. wait for
D. care for
