Một thanh nhiễm điện dương đưa gần, nhưng không chạm vào quả cầu của một tĩnh điện kế (điện nghiệm) chưa tích điện. Các lá điện nghiệm sẽ xòe ra vì

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the word that has the underlined part pronounced differently from the rest:  

  mutual                universal                usual               survey

• Choose the word that has the underlined part pronounced differently from the rest:  

  strategy               general           geography             great

• Choose one sentence that has the same meaning as the root one:

  They say that the world's population reached over 6.70 billion in February 2008.

• Choose the word that has the underlined part pronounced differently from the rest:  

  minority                martyr            cosy                  loyalty

• Choose a word that has different stress pattern:

  campaign                performance               brighten               donation

• Choose a word that has different stress pattern:

  illiteracy               disadvantage                 anniversary              residential

• Choose a word that has different stress pattern:

   acquaintance               embarrassing               co-operate               helicopter

• Choose a word that has different stress pattern:

  expand           hostess                outlook                sneaky

• Choose a word that has different stress pattern:

  universal               activity                minority             enthusiasm

• Choose one sentence that has the same meaning as the root one:

  Thanks to your timely warning, we were aware of the danger.