【单选题】【消耗次数：1】
Something must have happened on their way. Or they_____
by now.
①
should have arrived
②
should arrive
③
would have arrived
④
would arrive
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相关题目
【单选题】
15.We would have arrived two hours ago _____the traffic jam.
①
because of
②
as a result of
③
despite
④
but for
【单选题】
Would you like to have dinner with us this evening?
①
OK, but I have to go to a meeting now
②
No, I can’t
③
I’d love to, but this evening I have to go to the airport to meet my parents
④
I don’t know
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They were ( ) that they would have the right to work.
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③
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【单选题】
— Would you like to have some icecream?— _______________
①
I don’t know.
②
No，thanks.
③
I dont like it.
④
I like it.
【单选题】
If I had remembered __________ the window, the thief would not have got in.
①
to close
②
closing
③
to have closed
④
having closed
【单选题】
______ the storm, we should have reached our company.
①
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②
In spite of
③
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④
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【单选题】
＿＿＿ your letter，I would have started off two days ago.
①
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②
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③
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④
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【单选题】
30. -Would you like to have tea or coffee? - ____.
①
Either will do
②
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③
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④
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【单选题】
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①
a two-month
②
two months
③
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④
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【单选题】
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①
would do
②
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③
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随机题目
【单选题】
中心受压细长直杆丧失承载能力的原因为。（ ）
①
横截面上的应力达到材料的强度极限
②
压杆丧失直接平衡状态的稳定性
③
横截面上的应力达到材料的比例极限
④
横截面上的应力达到材料的屈服极限
【单选题】
依据力的可传性原理，下列说法正确的是（ ）。
①
力可以沿作用线移动到任何一点
②
力不可以沿作用线移动
③
力可以沿作用线移动到刚体内的任意一点
④
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【单选题】
下列说法不正确的是（ ）。
①
力可以平移到刚体内的任意一点
②
力使物体绕某一点转动的效应取决于力的大小和力作用线到该点的垂直距离
③
力偶在任何坐标轴上的投形恒为零
④
力系的合力在某一轴上的投形等于各分力在同一轴上投形的代数和
【单选题】
下列结论中（ ）是正确的。
①
材料力学主要研究杆件受力后变形与破坏的规律
②
材料力学主要研究各种材料的力学问题
③
材料力学主要研究各种材料的力学性质
④
材料力学主要研究各类杆件中力与材料的关系