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【单选题】
巡航速度是指发动机 () 情况下飞机的飞行速度,它的数值在最小和最速度之间。
A.
耗油量最小
B.
耗油量最大
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【简答题】热电偶必备的两个性质,()不同和()不同
【简答题】给下列的问句选择正确的答语。 (     ) 1. Where is my skirt? (     ) 2. What colour is it? (     ) 3. Is this your skirt? (     ) 4. Whose is this? (     ) 5. How many shirts do you have? A. I have three. B. Yes, it ...
【单选题】—Is this red bag yours? —No, it isn’t. is that black one.
A.
Your
B.
I
C.
My
D.
Mine
【简答题】C.配对阅读。左栏是五个人丢失或捡到的物品信息,右栏是七则失物招领启事,请为不同的物品找到匹配的启事。 A.Lost: My school ID card.Its number is 200-7712.My name is Mary Brown. B.Found: A schoolbag.It’s black and white.Is this your schoolbag?Call m...
【简答题】资本主义传统的生产方式有在城市中是行会制和在农村中是________两大原则。
【单选题】塑料更换颜色常采用的手段是
A.
喷漆
B.
电镀
C.
在塑料原料中增加色母来调色
D.
染色
【简答题】看图补全对话。 1. A: Where is your ______________? B: It's in my bag. 2. A: I have a red ______________. B: It's on the bed. 3. A: ______________ is your ______________? B: It's white. 4. A: Is this your ___...
【简答题】从方框中选出合适的句子,使对话内容完整连贯,两项是多余的。 Miss White: Can I help you, Linda? Linda: Yes, please. ___1______ Miss White: We have a bag here. ___2____ Linda: No, it isn’t Miss White: ____3______ Linda: It’s red. B...
【简答题】读一读,连一连。 1. Where is my skirt? 2. What colour is it? 3. Is this your skirt? 4. Whose is this? 5. How many shirts do you have? A. I have three. B. Yes, it is. C. It's my sister's. D. It's in your bag. ...
【判断题】在相同条件下,采用逆流操作比采用并流操作,所需传热面积要小。
A.
正确
B.
错误
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