题目内容：
在探究“电荷间的相互作用”的实验中，用绝缘细线悬挂两个小球，静止时的状态如图所示。下列判断正确的是（ ）
A.两球一定带同种电荷
B.两球可能带异种电荷
C.两球可能一个带电，一个不带电
D.两球均只受两个力
参考答案：
答案解析：
选择题：在探究“电荷间的相互作用”的实验中，用绝缘细线悬挂两个小球，静止时的状态如图所示。下列判断正确的是（ ）
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1 分钟跳绳，小华前两次的平均成绩为 192 下，前三次的平均成绩为 196 下，第三次跳了（________）下。
1 分钟跳绳，小华前两次的平均成绩为 192 下，前三次的平均成绩为 196 下，第三次跳了（________）下。
Which of the following statements is TRUE?
Which of the following statements is TRUE?
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Linda wants to find a job during her summer holiday. She can call_______ .
All of the farmers friends enjoyed the apples at last.
All of the farmers friends enjoyed the apples at last.
—Would you please tell me ________?—Its Mr. Blacks.
—Would you please tell me ________?—Its Mr. Blacks.