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【单选题】
隧道( )是为了防止围岩变形或坍塌,沿隧道洞身周边用钢筋混凝土等材料修建的永久性支护结构。A.
洞门
B.
C.
帽石
D.
衬砌
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反馈参考答案：
举一反三
【判断题】触点比较指令相当于一个触点，指令执行时，比较两个操作数[S1].[S2]，满足比较条件则触点闭合。LD=.LD>，LD，LD=六条指令属于LD类触点比较指令。( )
A.
正确
B.
错误
【判断题】触点比较指令相当于一个触点,指令执行时,比较两个操作数[S1].[S2],满足比较条件则触点闭合。LD=.LD>,LD,LD=六条指令属于LD类触点比较指令。( )
A.
正确
B.
错误
【简答题】A．Many people in New York suffered from typhoid in the 1910s. B．Mary Mallon changed her name to avoid spreading typhoid. C．Mary carried the disease but she herself was in good health. D．Mary was afrai...
【单选题】Mary changed her dollars for the amount of pounds.
A.
likely
B.
alike
C.
equivalent
D.
similar
【单选题】听力原文：M: Dear, Mary called to say she’ll come to the dinner party. W: Great. Changed her mind after all, did she? Q: What can you infer from the conversation? (19)
A.
Mary called to tell them she couldn't come to the dinner party.
B.
Mary didn't originally want to come to the dinner party.
C.
The couple is unhappy because Mary changed her mind.
D.
The woman doesn't believe the Mary really changed her mind.
【简答题】轿车按照箱数分可分为_______、两厢车、单厢车。
【简答题】Mary changed her dollars for the()amount of pounds. A) likely B) alike C)equivalent D)similar
【单选题】— Mary has changed a lot in the last few years. — ______. [ ]
A.
So has her sister
B.
So was her sister
C.
So did her sister
D.
So is her sister
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