劳动争议诉讼的前置程序是（）
A.自主协商调解
B.企业内部调解
C.劳动争议仲裁
D.劳动争议协商
参考答案：C
How should you signal the crane operator to dog everthing?（）.
A.Place both fists in front of the body with the thumbs pointing outward each other
B.Clasp hands in front of your body
C.Extend arm with the palm down and and hold this position rigidly
D.Extend arm with the thumb pointing up, and flex the finger s in and out
设
，且
.
求[*]
，且
.