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【单选题】
螺旋副的自锁条件是( )。A.
螺旋升角大于等于当量摩擦角
B.
螺旋升角小于等于当量摩擦角
C.
螺旋升角大于或小于当量摩擦角均可以
D.
不能确定
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举一反三
【单选题】Ex.9-1 Listen to the following short dialogues and choose the appropriate answers.
A.
AI is everywhere.
B.
These devices are smart.
C.
Not everybody knows about AI.
D.
Human life cannot do without AI.
【单选题】Listen to the short dialogues and choose the best answers _______.
A.
Chocolate.
B.
Strawberry ice-cream.
C.
Blueberry ice-cream.
D.
Chocolate ice-cream.
【简答题】Ask questions and give short answers. (对下列各句提问并作简略回答.) 1. K ate is doing her homework. __________________? Yes, __________. No, _________. 2. His p arents are talking with the teachers. ______________...
【单选题】Listen to the short dialogues and choose the best answers _________.
A.
The man does not like the food at the restaurant.
B.
The man is sick and cannot eat much.
C.
The man does not like glutamate in his dishes.
D.
The man wants glutamate in his dishes.
【简答题】Short Answers 1 Auctions are public sales of goods conducted by an officially approved auctioneer. He asks the crowd assembled in the auction-room to make offers, or 'bids', for the various items on s...
【简答题】short answers 11-15
【单选题】Ex.9-1 Listen to the following short dialogues and choose the appropriate answers.
A.
He’s always ready to help.
B.
He’s full of confidence.
C.
He’s looking for a job.
D.
He’s complaining.
【多选题】对建设工程施工合同的价格分析时，应重点分析的内容包括( )。
A.
拖欠工程款的合同责任
B.
合同价格的调整
C.
工程变更的有关规定
D.
工程量计量程序
E.
合同所采用的计价方法
【单选题】Listen to the short dialogues and choose the best answers _________.
A.
Beef.
B.
Pork.
C.
Chicken.
D.
Vegetables.
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