【单选题】【消耗次数：1】
My grandmother’s taken ill and I’ve got to go down to the hospital.
①
We’re going to the same place
②
Very sorry to hear it. I hope it’s nothing serious
③
Really?
④
Let me go with you
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相关题目
【单选题】
A: Why didnt you come to my party last night? B: Im sorry, [填空]. I had to visit my grandmother at the hospital.
①
I did it
②
I still remember it
③
I will come
④
I couldnt make it
【单选题】
Thats pretty good that you get up and go running, but I ______ like running early in the morning since I’ve got to prepare breakfast for my family.
①
have a good time
②
have a hard time
③
have time
④
have much time
【单选题】
Wow. That’s a marvelous room. I’ve never known you’re so artistic!____________
①
Thank you for your compliments.
②
Don’t mention it.
③
Great, I am very art-conscious.
④
It’s fine.
【单选题】
—I’ve got an offer in New York. —Oh, ____! But I’m going to miss you.
①
That’s too bad
②
I’m sorry
③
I beg your pardon
④
That’s great
【单选题】
We’ll go out as soon as I’ve ____ the kitchen.
①
sent for
②
cleaned up
③
done with
④
worked out
【单选题】
I want go to New York. What’s the fare?
①
Pardon me?
②
I’m sorry
③
Yes, I don’t understand
④
I’m not understanding
【单选题】
Well, it’s getting late. I must be going. Thank you again for inviting me to the party.
①
Oh, it’s so late
②
Thank you for coming
③
Oh, so soon?
④
I really had a happy time
【单选题】
I am very grateful to you for what you’ve given me and __________ you have done for me.
①
which
②
that
③
all what
④
all that
随机题目
【单选题】
管路中流动流体的压强降Δp与对应沿程阻力ρhf数值相等的条件是 。
①
(1)管道等径，滞流流动；
②
(2)管路平直，管道等径；
③
(3)平直管路，滞流流动；
④
(4)管道等径，管路平直，滞流流动。
【简答题】
<img src="https://huaweicloudobs.ahjxjy.cn/D851E1F97821B00CC1E4AAF34D9E7C1D.png" title="8.png" alt="8.png"/>
【单选题】
列管换热器中用饱和蒸汽加热空气，下面两项判断是否合理，甲：传热管的壁温接近加热蒸汽的温度；乙：换热器总传热系数K接近空气侧的对流给热膜系数,说的正确的是 。
①
(a)甲合理，乙不合理
②
(b)甲不合理，乙合理
③
（c）甲乙都合理
④
(d） 甲乙都不合理
【单选题】
用一离心泵将冷却水由贮水池送至高位槽。已知高位槽液面比贮水池液面高出10m，管路总长（包括局部阻力的当量长度在内）为400m，管内径为75mm，摩擦系数为0.03。该泵的特性曲线方程为H=18-600000Q^2，式中H的单位是m，Q的单位是m/s。试求：(1) 管路特性曲线方程；(2) 泵工作时的流量和扬程。
①
H=10+418250Q^2Q=0.0028m^3/sH=10m
②
H=10+418250Q^2Q=0.0028m^3/sH=13.29m
③
H=10+258900Q^2Q=0.0042m^3/sH=10m
④
H=10+258900Q^2Q=0.0042m^3/sH=13.29m