按循环启动按钮NC控制机的程序将（）执行，在执行程序时该按钮的指示灯亮，当执行完毕后指示灯灭。
A.转向
B.跳过
C.自动
D.释放
参考答案：C
They suggested that the professor just now chairman of the meeting. [ ]
A.referring to;was made
B.referring to;be made
C.referred to;be made
D.referred to;was made
艺术插花的表现手法有（）式插花。
A、抒情
B、写景
C、写意
D、造型
E、象形
F、抽象
