What is one country in the Middle East trying to do?
A. Create a new government.
B. Make its citizens happier.
C. Make the world people happy.
D. Create a new office in the government.
查看答案
What do people complain about the government?
A. The government doesn’t do anything to make people happy.
B. The government doesn’t care whether people are happy or not.
C. The government hasn’t created an office to study people’s happiness.
D. The government hasn’t solved many problems that make people unhappy.
下列牌号钢筋中,属于热轧带肋钢筋的是( )。
A. HPB300
B. HRB600
CRB550
D. Q235B
碳素结构钢的牌号由代表____、____、____、____等四个部分按顺序组成。
Q255BF表示屈服点为____MPa的、质量等级为____级的 ____钢。
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