皮皮学，免费搜题
登录
搜题
【简答题】
几何公差可分为形状公差、方向公差、位置公差和跳动公差四类，共（）个项目，其中形状公差（）项，方向公差（）项，位置公差（）项，跳动公差（）项。跳动公差又分（）跳动、（）跳动两种。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】“新型冠状病毒”in English? “新型冠状病毒肺炎”in English? “确诊病例”in English? “疑似病例”in English? “重症患者”in English? “死亡率”in English? “密切接触者”in English? “接受医学观察”in English? “隔离”in English? “人传人”in English? “飞沫”in English?...
【简答题】lights on and doors open什么意思
【多选题】When a station officer notices that one passenger gets sandwiched between safety doors or train doors, what should he or she do?
A.
If one passenger gets sandwiched between safety doors/train doors，station officer should take emergency measures and open the doors immediately.
B.
Station officer should save the passenger immediately and make the passenger calm down.
C.
Station officer should inquiry how the whole thing happened after the passenger calms down.
D.
Station officer should run away and ask for somebody else’s help.
【单选题】—What's this _______? — It is a map. [ ]
A.
English
B.
in English
C.
is
D.
in English
【简答题】请将车票准备好到检票口检票上车。
【简答题】某氯化铁样品含有少量FeCl 2 杂质。现要测定其中铁元素的质量分数，实验按以下步骤进行： 请根据上面流程，回答以下问题： （1）操作I是配制溶液，所用到的玻璃仪器除烧杯、玻璃棒外，还必须有 、 .（填仪器名称） （2）下列操作可能使所配溶液浓度偏小的是________________（填写序号）。 ①未洗涤烧杯和玻璃棒 ②定容时俯视容量瓶的刻度线 ③配溶液前容量瓶中有少量蒸馏水 ④摇匀后，发现液...
【单选题】The doors are removable units that give access to the airplane compartments. The doors on the airplane include: - Forward and aft entry doors - Forward and aft galley service doors - Emergency exit do...
A.
货舱门
B.
紧急出口门
C.
配餐门
D.
登机门
相关题目：