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【多选题】
关于速度、速度的变化量、速度的变化率、加速度的关系，下列说法正确的是（）A.
物体加速度增大时，速度也增大
B.
物体速度变化量越大，则加速度越大
C.
物体速度变化越快，则速度的变化率越大，加速度也越大
D.
物体加速度不断减小，速度可以不断增大
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反馈参考答案：
举一反三
【单选题】What is said about the speaker?
A.
She studied computer science.
B.
She is a small business owner.
C.
She teaches at Hurley University.
D.
She works for the Chamber of Commerce.
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
It takes her long time to be there.
B.
She must have her car repaired.
C.
She must finish something by herself.
D.
She can not find a garage.
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
1:50.
B.
1:55.
C.
2:00.
D.
2:05.
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
1:50.
B.
1:55.
C.
2:00.
D.
2:05.
【简答题】如图，已知∠1=∠2，∠B=∠C。 求证：（1）CE∥BF； （2）∠B=∠3； （3）∠A=∠D。
【单选题】Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the ...
A.
A holiday.
B.
Luck.
C.
Work..
D.
An accident.
【简答题】4 已知A=(1，2，3)，B=(2，3，1)，C=(3，1，2)，求A·(B×C)和A×(B×C)
【判断题】The speaker lived with students from different countries when she studied in the UK.
A.
正确
B.
错误
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