【单选题】【消耗次数：1】
机械加工工艺系统的内部热源主要有（）。
①
人体辐射
②
部件摩擦
③
日光照射
④
空气对流
参考答案：
复制
纠错
相关题目
随机题目
【单选题】
A: [填空]? B: Id like a cup of coffee.
①
What do you want
②
What are you looking for
③
What can I do for you
④
Do you want to buy anything
【单选题】
—He has two brothers and three sisters. Do you know____ of them?—No, I know ____ of them.
①
some; none
②
some
③
any; none
④
either; some
【单选题】
A: Would you like to order now? B: [填空].
①
Im full now
②
But the price is high
③
Yes, Id like fish and soup
④
Its very kind of you
【单选题】
A: Im sorry. Robert is not in his office. B: [填空]?
①
Are you sure for that
②
Would you like to leave a message
③
Can you take a message for me
④
Can he phone me
【单选题】
A: Were you at home last night? B: [填空].
①
Certainly
②
Certainly I was
③
Sure I was
④
O.K
【单选题】
A: What would you like, sir? B: [填空].
①
Two cups of coffees
②
Two coffees
③
Two cup of coffee
④
Two cups coffee
【单选题】
A: [填空], Mr. John? You dont look very well. B: Ive had a pain in my chest since this morning.
①
How are you
②
Whats your trouble
③
How are you feeling
④
How are you getting on
【单选题】
—Do you mind if Charlie borrows a few hundred dollars from you?—Im afraid I do. Ill be glad to lend money to _____ but Charlie.
①
someone
②
everyone
③
anyone
④
no one
【单选题】
Will you see to _____ that the flowers are well protected during the rainy season?
①
it
②
me
③
/
④
yourself
【单选题】
A: That was a great dinner. [填空] B: Thanks. But it really only took an hour.
①
I have never had it before.
②
You must have spent all day cooking.
③
I enjoyed it very much.
④
Who cooked it?