马铃薯中的毒性成分是（）
A.皂素
B.亚麻仁苦苷
C.龙葵素
D.血凝素
E.苦杏仁素
参考答案：C
A team member notices the project manager that a quality measurement for the project can not be met. What should the project manager do
A) Notify management.B) Hold a team meeting.C) Look for alternative ways to meet the quality level.D) Ask management tp come up with options.
三坐标计算机数控精密测量机，采用( )传感器。
A．一维
B．二维
C．三维
