【单选题】【消耗次数：1】
What [填空] you doing at this time?
①
were
②
are
③
is
④
was
参考答案：
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【单选题】
A: I didnt know you play basketball. Are you having fun? B: Im having a great time. [填空] What are you doing?
①
Great!
②
How about you?
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I miss it so much
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Do you know billiards?
【单选题】
If you follow these steps below, youll know what is worth seeing and doing, so that you can ( ) your time at the museum.
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make a plan for
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make ends meet
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make sure of
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make the most of
【单选题】
Haven’t seen you for ages! What are you busy doing now?____________
①
I hate the weather here.
②
My hair is getting a bit longer.
③
I am working part time in a bookshop, you know.
④
Yeah, thanks for coming.
【单选题】
A: How are you doing？B: [填空].
①
Good night
②
Not so bad. And you?
③
I m pleased.
④
How do you do?
【单选题】
A: Havent seen you for ages! What are you busy with now? B: [填空].
①
Long time no see
②
Glad to see you
③
Yeah, thanks for coming
④
I am working part time in a bookshop, you know
【单选题】
By the time you get there, the guests will [填空].
①
have left
②
leave
③
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④
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随机题目
【单选题】
以下说法正确的是（ ?）?。
①
钢筋混凝土结构耐久性和耐火性都较好，但其结构自身重力较大
②
钢筋混凝土结构可模性和整体性较好，隔热性和隔声性也好
③
钢筋和混凝土两种材料虽材性不同，但能共同作用的原因是二者的线膨胀系数接近
④
钢筋和混凝土能够协同工作主要原因是钢筋和混凝土这两种材料材性相同
【单选题】
当建筑采用混凝土结构，下列材料选择中（ ）有错误？
①
预应力混凝土结构的混凝土强度等级不低于C30
②
当采用HRB400和RRB400级钢筋时，及重复荷载时，混凝土不得低于C25
③
当采用钢绞线、钢丝、热处理钢筋作预应力筋时，混凝土不宜低于C40
④
钢筋混凝土结构的混凝土不应低于C15；当采用HRB335级钢筋时，混凝土不宜低于C20