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【判断题】
标志变异指标是反映总体各单位标志值的差异程度的综合指标,又称标志变动度。
A.
正确
B.
错误
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【简答题】阅读理解。 Uncle Lee is coming to have dinner with us. Mum and I go shopping. We don't have any meat (肉). We need to buy some. It's ten yuan, a kilo before. But now two kilos are forty yuan.  I say,  ' Mum...
【多选题】金属材料的工艺性能有哪些?
A.
焊接性能
B.
切削性能
C.
压力加工性能
D.
铸造性能
【多选题】金属材料的工艺性能有哪些?
A.
铸造性能
B.
锻造性能
C.
焊接性能
D.
切削加工性能
【简答题】用下面句子填空(填大写ABC) A. s have to worry about bills B. I always have to tell my mum and dad C. she has to go to work D. He has to work really hard E. you don't have to go out to work F. ...
【单选题】证券发行市场的作用不包括( )。
A.
为资金需求者提供筹措资金的渠道
B.
为中小企业提供融资的渠道
C.
为资金供应者提供投资的机会
D.
形成资金流动的收益导向机制,促进资源配置的不断优化
【单选题】— Mum, I don't like drinking milk. — For your health, dear, you ______. [     ]
A.
must
B.
have to
C.
need
D.
could
【简答题】阅读理解。 Dear Mum, I don't think you understand my life. You think I should be studying all the time. I know you want me to find a good job when I grow up, but I would like to have a wonderful time, too....
【简答题】食品在加工、储存或机械损伤时,都会使食品变褐色,或比原来的色泽更深,这类变化叫做( )现象。
【单选题】A: Hey, Billy. You look worried. What's the matter? B: Err. I need to buy a book. but I don't have enough money. A: Why? You mum has given you the money of this month, hasn't she? B: Yes, she has. But...
A.
Lack of money.
B.
He wants to buy a book.
C.
The book is too expensive.
D.
His mother won't give him money.
【简答题】阅读理解。 Uncle Li is coming to have dinner with us. Mum and I go shopping. We don't have any meat. We need to buy some. It's ten yuan a kilo (一公斤) before (以前). But now two kilos are sixty yuan. I say, 'M...
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