TD-SCANNER分析仪不具备一下那个功能（）
A.GPS定位和同步
B.频谱扫描分析
C.单音信号（CW）测量
D.天线下倾角测量
参考答案：D
Read and fill in the blanks. 单词变变身。用所给词的适当形式填空。
1. What do you usually (do) on weekends?
2. I (go) to the zoo two days ago.
3. What day (be) it yesterday? .
4. The twins (be) in Beijing now.
5. We like (play) soccer.
Ⅰ级防水屋面应选用合成高分子防水卷材、高聚物改性沥青防水卷材，三道或三道以上防水设防。( )
