2020-03-02到2020-06-30
1、 Over the years this country seemed to waver unpredictably between love and hatred for the United States, sometimes begging for its attention, sometimes lashing out at it.
A:fluctuate
B:hesitate
C:vibrate
D:alternate
答案: alternate
2、 On Monday night the Prime Minister faces the biggest challenge at the Parliament j
2020-05-07到2020-08-31
1、 Over the years this country seemed to waver unpredictably between love and hatred for the United States, sometimes begging for its attention, sometimes lashing out at it.
A:fluctuate
B:hesitate
C:vibrate
D:alternate
答案: alternate
2、 On Monday night the Prime Minister faces the biggest challenge at the Parliament j
1、 AutoCAD图形文件和模板文件的后缀名分别是（ ）。
答案: dwg和dwt
2、 在屏幕上用PAN命令将某图形沿X方向及Y方向各移动若干距离，该图形的坐标将（ ）。
答案: 在X方向及Y方向均不发生变化
3、 在工作移动图形时，可利用以下方式实现( )。
答案: 按住鼠标中键拖动
4、 如果用户要取消AutoCAD当前命令的操作，应按下（ ）。
答案: Esc
5、 要绘制垂直和水平直线，应开启捕捉.