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【简答题】
在平面直角坐标系xOy中，已知△ABC和△DEF的顶点坐标分别为A（1，0）、B（3，0）、C（2，1）、D（4，3）、E（6，5）、F（4，7）。按下列要求画图：以点O为位似中心，将△ABC向y轴左侧按比例尺2：1放大得△ABC的位似图形△A 1 B 1 C 1 ，并解决下列问题： （1）顶点A 1 的坐标为 ▲ ，B 1 的坐标为 ▲ ，C 1 的坐标为 ▲ ； （2）请你利用旋转、平移两种变换，使△A 1 B 1 C 1 通过变换后得到△A 2 B 2 C 2 ，且△A 2 B 2 C 2 恰与△DEF拼接成一个平行四边形（非正方形）。写出符合要求的变换过程。
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参考答案：
举一反三
【单选题】Which of the following ones does not belong to Geely’s turnaround plan?
A.
Geely will not interfere in Volvo’s management of day-to-day decisions and will continue producing Volvo cars in Europe.
B.
Geely will manufacture the same vehicles as Volvo.
C.
Geely will use Volvo’s technology in its vehicles.
D.
Geely intends to build a factory that can produce 300,000 cars per year.
查看完整题目与答案
【单选题】下列因素中导致自激振动的是( )。
A.
(A)转动着的工件不平衡
B.
(B)机床传动机构存在问题
C.
(C)切削层沿其厚度方向的硬化不均匀
D.
(D)加工方法引起的振动
查看完整题目与答案
【判断题】Geely has the knowledge needed to manage a large company like Volvo.
A.
正确
B.
错误
查看完整题目与答案
【单选题】A warranty may not be a remedy for products delivered unfit when _____ . A the PM has knowledge of the product, inspected it without relying on the seller's skill B the products delivered comply with ...
C.
the plans and specifications produced by the seller match the completed product.
D.
A and B
E.
None of the above.
查看完整题目与答案
【判断题】Geely has the knowledge needed to manage a large company like Volvo.
A.
正确
B.
错误
查看完整题目与答案
【简答题】When I was in high school, my father retired and set up a food booth on the street near my school. He was particularly good at . Every day after I finished school, my classmates and I would his...
查看完整题目与答案
【单选题】下列因素中导致自激振动的是( )。
A.
转动着的工件不平衡
B.
机床传动机构存在问题
C.
切削层沿其厚度方向的硬化不均匀
D.
加工方法引起的振动
查看完整题目与答案
【判断题】(1) Geely built Geely College in 1985 and donated 8 million in Wenchuan Earthquake. Since 2000, Geely is the subcompany of VOLVO.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Of the two lessons, the first was by far______, partly because the teacher has more knowledge.
A.
the best
B.
better
C.
the better
D.
much better
查看完整题目与答案
【单选题】下列因素中导致自激震动的是( )。
A.
转动着的工件不平衡
B.
机床传动机构存在问题
C.
切削层沿其厚度方向的硬化不均匀
D.
加工方法引起的振动
查看完整题目与答案
相关题目：
【单选题】Which of the following ones does not belong to Geely’s turnaround plan?
A.
Geely will not interfere in Volvo’s management of day-to-day decisions and will continue producing Volvo cars in Europe.
B.
Geely will manufacture the same vehicles as Volvo.
C.
Geely will use Volvo’s technology in its vehicles.
D.
Geely intends to build a factory that can produce 300,000 cars per year.
查看完整题目与答案
【单选题】下列因素中导致自激振动的是( )。
A.
(A)转动着的工件不平衡
B.
(B)机床传动机构存在问题
C.
(C)切削层沿其厚度方向的硬化不均匀
D.
(D)加工方法引起的振动
查看完整题目与答案
【判断题】Geely has the knowledge needed to manage a large company like Volvo.
A.
正确
B.
错误
查看完整题目与答案
【单选题】A warranty may not be a remedy for products delivered unfit when _____ . A the PM has knowledge of the product, inspected it without relying on the seller's skill B the products delivered comply with ...
C.
the plans and specifications produced by the seller match the completed product.
D.
A and B
E.
None of the above.
查看完整题目与答案
【判断题】Geely has the knowledge needed to manage a large company like Volvo.
A.
正确
B.
错误
查看完整题目与答案
【简答题】When I was in high school, my father retired and set up a food booth on the street near my school. He was particularly good at . Every day after I finished school, my classmates and I would his...
查看完整题目与答案
【单选题】下列因素中导致自激振动的是( )。
A.
转动着的工件不平衡
B.
机床传动机构存在问题
C.
切削层沿其厚度方向的硬化不均匀
D.
加工方法引起的振动
查看完整题目与答案
【判断题】(1) Geely built Geely College in 1985 and donated 8 million in Wenchuan Earthquake. Since 2000, Geely is the subcompany of VOLVO.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Of the two lessons, the first was by far______, partly because the teacher has more knowledge.
A.
the best
B.
better
C.
the better
D.
much better
查看完整题目与答案
【单选题】下列因素中导致自激震动的是( )。
A.
转动着的工件不平衡
B.
机床传动机构存在问题
C.
切削层沿其厚度方向的硬化不均匀
D.
加工方法引起的振动
查看完整题目与答案
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