For each of them there are four choices marked A, B, C and D. You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
每题都有对应标记的A、B、C和D四个选项，请选择最佳选项并在答题卡2的相应字母中间划横线。
2
Draw a line from a to B.
从A到B划一条线。
《新英汉大辞典》
3
Appendix B. Command line and GUI support by feature.