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【单选题】
商业汇票的付款期由交易双方商定,但最长不能超过()个月。
A.
6
B.
2
C.
9
D.
12
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A.
撞击力
B.
剪切力
C.
离心力
D.
摩擦力
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【简答题】听短文,选择正确答案。听两遍。 1. What is Mrs. Smith's telephone number ? A. 54688 B. 51688 C. 5688 2. What trouble does Mrs. Smith have? A. There was something wrong with her telephone. B. She often got a wrong cal...
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【简答题】听下面一段对话，完成第1至3题。 1. Where did the teacher talk with Jack? A. At home. B. Outside school. C. In the classroom. 2. What was Mrs. Smith going to do? A. To visit Jack's father. B. To call Jack's parents. ...
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【单选题】维生素C的生理功能是( )。
A.
具有抗氧化性
B.
维持血清钙磷浓度的稳定
C.
缺乏时会出现细胞增生、毛发角化
D.
骨质疏松
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【单选题】— Did Mrs Smith call you yesterday? — Yes. I was about for lunch when the telephone rang. A. going out B. to going out C. to go out
A.
1
B.
2
C.
3
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【单选题】—Did Mrs. Smith call you yesterday? — Yes. I was about ________ for dinner when the telephone rang.
A.
going out
B.
to going out
C.
to go out
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【单选题】垄断竞争厂商短期均衡的条件是（ ）。
A.
平均收益等于平均成本
B.
边际收益等于边际成本
C.
总收益等于总成本
D.
以上都不对
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【单选题】垄断竞争厂商短期均衡的条件是()
A.
平均收益等于平均成本
B.
边际收益等于边际成本
C.
总收益等于总成本
D.
边际收益等于平均成本
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【单选题】雨季前,加强现场端子箱、机构箱( )措施的巡视。 ( A)渗漏;(B)漏电;(C)封堵;(D)防锈。
A.
B.
C.
D.
D
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【简答题】听下面一段材料，回答第1至3题。 1. Where did the teacher talk with Jack? A. At home. B. Outside school. C. In the classroom. 2. What was Mrs.Smith going to do? A. To visit Jack's father. B. To call Jack's parents. C...
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【多选题】圆盘式造粒机的母粒在( )及挡板的作用下,在转盘与筒体的过渡曲面上形成涡旋运动的粒子流
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B.
剪切力
C.
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D.
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【单选题】维生素C的生理功能是( )。
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【单选题】— Did Mrs Smith call you yesterday? — Yes. I was about for lunch when the telephone rang. A. going out B. to going out C. to go out
A.
1
B.
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【单选题】—Did Mrs. Smith call you yesterday? — Yes. I was about ________ for dinner when the telephone rang.
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B.
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【单选题】垄断竞争厂商短期均衡的条件是（ ）。
A.
平均收益等于平均成本
B.
边际收益等于边际成本
C.
总收益等于总成本
D.
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【单选题】垄断竞争厂商短期均衡的条件是()
A.
平均收益等于平均成本
B.
边际收益等于边际成本
C.
总收益等于总成本
D.
边际收益等于平均成本
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【单选题】雨季前,加强现场端子箱、机构箱( )措施的巡视。 ( A)渗漏;(B)漏电;(C)封堵;(D)防锈。
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【简答题】听下面一段材料，回答第1至3题。 1. Where did the teacher talk with Jack? A. At home. B. Outside school. C. In the classroom. 2. What was Mrs.Smith going to do? A. To visit Jack's father. B. To call Jack's parents. C...
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