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【單選題】
做曲線運動的物體，在運動過程中一定變化的是（ ）
A.
速率
B.
速度
C.
加速度
D.
合外力
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舉報參考答案：
舉一反三
【單選題】When should a runner run more slowly according to the speaker?
A.
When it rains.
B.
When it’s windy.
C.
When it’s cold.
【單選題】What happened to the man one year ago?
A.
He was injured in the gym.
B.
He broke up with Tina.
C.
He made some friends.
【單選題】What is the most important thing to consider when choosing running socks?
A.
Material.
B.
Thickness.
C.
Size.
【單選題】Why does the woman almost fail to recognize the man?
A.
The man is a mess.
B.
The man looks very old.
C.
The man has put on some weight.
相關題目：
【單選題】When should a runner run more slowly according to the speaker?
A.
When it rains.
B.
When it’s windy.
C.
When it’s cold.
【單選題】What happened to the man one year ago?
A.
He was injured in the gym.
B.
He broke up with Tina.
C.
He made some friends.
【單選題】What is the most important thing to consider when choosing running socks?
A.
Material.
B.
Thickness.
C.
Size.
【單選題】Why does the woman almost fail to recognize the man?
A.
The man is a mess.
B.
The man looks very old.
C.
The man has put on some weight.
參考解析：
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