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【单选题】
下列关于低合金高强度结构钢 Q345 — E 表达正确的是( )
A.
该种钢材质量等级为 E 级
B.
该种钢材选用 E 345 焊条焊接
C.
该种钢材一般属于沸腾钢
D.
该种设计强度是
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举一反三
【单选题】.-----Tommy is planning to buy a car. ----I know .By next month, he______ enough for a used one.
A.
saves
B.
saved
C.
will save
D.
will have saved
【单选题】不同直径管子对口焊接,其内径差不宜超过( ) mm ,否则应采用变径管。
A.
0.5
B.
1
C.
2
D.
3
【判断题】1688 网站是网络贸易交易平台,而“我的阿里”是网站给每一个商家(供应商和采购商)的后台操作系统,可以进行网络贸易的采购与销售操作,是集成商家运营所需的各种功能与服务的平台,其集成了销售、采购、交易管理、数据分析、物流、培训等全方位的贸易功能和服务。
A.
正确
B.
错误
【单选题】The next thing he saw was smoke ________ from behind the house.
A.
rose              
B.
to rise           
C.
rising          
D.
risen
【单选题】The next thing he saw was smoke from behind the house.
A.
rose
B.
rising
C.
to rise
D.
risen
【单选题】Automation system always could not replace the pilots,the main reason is()
A.
automation system can not rationally process the information
B.
automation system can not make decision when human is in ambiguous conditions
C.
automation system cannot fully operate aircraft
【多选题】汽车产品介绍流程-----六方位介绍包括( )。
A.
右前方45°
B.
车尾部
C.
驾驶室
D.
发动机舱
【单选题】All of the following are mentioned as examples of mass transit system that could help with the problem of inadequate public transportation EXCEPT
A.
buses.
B.
trains.
C.
subways.
D.
ferries.
【单选题】The behavior. sensor and software system built in a phone
A.
could help store messages.
B.
could send messages instantly.
C.
could tell when it is wise to interrupt you.
D.
could identify important phone calls.
【单选题】If only the rich could be helped by lawyers, the justice system would be________ 查看材料
A.
Undemocratic
B.
fair and reasonable
C.
modern
D.
in need of no changes
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