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单选题Two boards are being cut for a construction project. If the total length of the boards is 100 inches and the shorter board is 5 inches less than half the length of the longer board, what is the length of the shorter board?A 25 inchesB 30 inchesC 35 inc

题目
单选题
Two boards are being cut for a construction project. If the total length of the boards is 100 inches and the shorter board is 5 inches less than half the length of the longer board, what is the length of the shorter board?
A

25 inches

B

30 inches

C

35 inches

D

65 inches

E

70 inches

参考答案和解析
正确答案： B
解析：
设长板的长度为x，短板的长度为y，故x+y=100，y=0.5x-5，故y=30，所以本题选B项。
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相似问题和答案

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第3题：

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正确答案：B

第4题：

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A、left her with two children

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第5题：

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第6题：

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答案：C

第7题：

If the building project ________ by the end of this month is delayed, the construction company will be fined.

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正确答案：B

第8题：

_____that caused him to serve dinner two hours later than usual.

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B、It was our being late.

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参考答案：B

第9题：

Two problems seem to()if we take this line of persuasion with school boards and parents.

A、establish

B、enter

C、represent

D、emerge


答案：D

解析：题干翻译为：如果我们对学校董事会和家长采取这种说服方式的话，似乎有两个问题（）

A建立 B进入 C代表 D浮现、显露、暴露。根据题干可知完整的句意为如果我们对学校董事会和家长采取这种说服方式的话，似乎有两个问题会暴露出来。故选项D正确

第10题：

A young man is being hailed a hero tonight after rescuing two children.

A:reported
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答案：D
解析：
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