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【单选题】
低合金高强度结构钢是在碳素结构钢的基础上，少量添加若干合金元素如硅、锰、钒等，一般情况下，合金元素的总量不超过总量的( )。A.
5.5%
B.
5%
C.
4.5%
D.
4%
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】某溺 水患者血气检测结果为pH降低, PaCO 2 增高,SB正常,提示有:
A.
AG增大型代谢性酸中毒
B.
AG正常型代谢性酸中毒
C.
呼吸性酸中毒
D.
代谢性碱中毒
E.
呼吸性碱中毒
【单选题】Human beings make themselves different from other animals by ______.
A.
having the ability to perceive danger
B.
having a far greater memory capacity
C.
having the ability to recognize faces and places on sight
D.
having the ability to draw on past experiences
【简答题】功能敛肺化痰定喘，止带缩尿的药物是（ ）
【单选题】下列说法中错误的是()。
A.
实现中国梦离不开和平的国际环境
B.
实现中国梦离不开稳定的国际秩序
C.
在维护世界和平与发展的方面中国的能力一日按有所欠缺
D.
中国是世界上最大的发展中国家
【单选题】有关顺序控制指令的说法错误的是:
A.
SCR指令只对状态元件S有效
B.
相同编号的S元件可以重复使用
C.
SCRT表示一个步转移，当前步被复位，后续步被置位
D.
步与步之间不能直接相连
【单选题】The privately-owned school system in Smalltown has a virtually unlimited capacity. It accepts all applicants and operates on both tuition and private donations. Although every resident places value on...
A.
The free-rider problem causes the private market to undersupply education to the community.
B.
The government can potentially help the market reach a socially optimal level of education.
C.
A tax increase to pay for education could potentially make the community better off.
D.
The private market is the best way to supply education.
【单选题】What was the result of businesses having surplus capacity?
A.
Many companies aimed to developing new vehicles.
B.
Some companies re-launched old vehicles with new technology.
C.
Some companies lose capacity by selling off parts of a business.
D.
There came a series of joint agreements and mergers between car companies.
【简答题】法律离不开国家，从属于国家是因为（ ）。
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