登高焊接作业人员应使用符合安全要求的梯子，下面说法正确的是（）。A.梯脚需包橡皮...

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登高焊接作业人员应使用符合安全要求的梯子，下面说法正确的是（）。

梯脚需包橡皮防滑，与地面夹角应小于45°

使用人字梯时，要有限跨沟，不准两人在同一梯子上作业

登高作业的平台应带有栏杆，不得使用有腐蚀或机械损伤的木板或混合版制作

登高作业的平台不得大于1：3的坡度，板面要钉防滑条

使用的安全网要、结实，不准有破损

手机使用

复制链接

新浪微博

分享QQ

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微信内点击右上角“…”即可分享

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参考答案：

举一反三

【单选题】He is ______ a writer as a reporter.

rather

not so much

not such

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【简答题】He is ________ a writer as a reporter. A) more B) rather C) not so much D) not much

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【单选题】诊断慢性阿米巴痢疾首选方法是

饱和盐水漂浮法

自然沉淀法

碘液染色法

直肠镜检查

透明胶纸法

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【单选题】同类型的表面活性剂不同给药途径毒性大小是( )

静脉注射>口服>外用

口服>静脉注射>外用

外用>口服>静脉注射

口服>外用>静脉注射

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【简答题】He is ________ a writer as a reporter [A] more [B] rather [C] not so much [D] not such

查看完整题目与答案

【多选题】在肉类腌制品中最常用的护色剂有( )( )( )( )( )

亚硝酸钠

亚硝酸钾

硝酸钠

硝酸钾

烟酰胺

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【单选题】As his wife says, he is ______ a writer as a reporter.

not so much

rather

not such

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【单选题】He is a professor and a writer _____. [ ]

as well

either

also

so well

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【单选题】As a writer he is ___. But as a teacher he is ____.

a success;a failure

success;failure

a success;failure

success;a failure

查看完整题目与答案

【单选题】He is _______ a writer as a reporter.

rather

not such

not so much

查看完整题目与答案

rather

not so much

not such

查看完整题目与答案

【简答题】He is ________ a writer as a reporter. A) more B) rather C) not so much D) not much

查看完整题目与答案

查看完整题目与答案

【单选题】同类型的表面活性剂不同给药途径毒性大小是( )

查看完整题目与答案

【简答题】He is ________ a writer as a reporter [A] more [B] rather [C] not so much [D] not such

查看完整题目与答案

【多选题】在肉类腌制品中最常用的护色剂有( )( )( )( )( )

查看完整题目与答案

【单选题】As his wife says, he is ______ a writer as a reporter.

not so much

rather

not such

查看完整题目与答案

【单选题】He is a professor and a writer _____. [ ]

查看完整题目与答案

【单选题】As a writer he is ___. But as a teacher he is ____.

查看完整题目与答案

【单选题】He is _______ a writer as a reporter.

rather

not such

not so much

查看完整题目与答案

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