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【简答题】
设10件产品中有4件不合格品，从中任取两件，已知取出的两件中至少有一件是不合格品，问：两件都是不合格品的概率是多少?
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举一反三
【简答题】We can use a smile to _____________, to greet someone,
【简答题】阅读理解。 A greeting is a way of saying 'Hello' to someone. People in different countries greet each other in different ways. Here are some. a. a handshake b. a bow c. a kiss on the...
【单选题】_____ Greet someone you've met some time ago.
A.
This is Mrs Davis. She is in charge of exports.
B.
Hi! How are you?
C.
Good morning. Pleased to meet you.
D.
Nice to meet you at last!
E.
Good to see you again!
F.
I'm sorry I didn't catch your name. Can you say it again?
【简答题】A greeting is a way of saying 'Hello' to someone. People in different countries greet each other in different ways. Here are some. World Greetings Philippine The everyday greeting for friends is a h...
【简答题】阅读理解。 Today it seems perfectly natural for us to shake hands when we greet someone or say goodbye. But like so many things that we do without thinking such actions at one time probably represented som...
【单选题】人造纤维与合成纤维的区别在于 [ ]
A.
人造纤维的原料是天然纤维，合成纤维的原料是石油、天然气等
B.
人造纤维的原料是石油、天然气等，合成纤维的原料是天然纤维
C.
人造纤维的成分是纤维素，合成纤维的成分是不饱和烃或烃的衍生物
D.
人造纤维的成分是不饱和烃或烃的衍生物，合成纤维的成分是纤维素
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