钢丝绳卷绕在卷筒上de安全圈数不得少于()圈,钢丝绳末端应固定可靠。 A.5 B.2 发布时间:2020-12-02 07:32 │ 来源:www.tikuol.com 题型:单项选择题 问题: 钢丝绳卷绕在卷筒上de安全圈数不得少于()圈,钢丝绳末端应固定可靠。A.5B.2C.1D.3
题型:单项选择题 —Have you heard that 13 Chinese sailors were killed in Thailand on Oct 5 ?—Yes , news came as shock to me .A.the ; aB.the ; theC.a ; aD.a ; the 查看答案