50. Which is true about Auroras?
(A) They can only appear as arcs or swirls.
(B) The most spectacular ones are most often viewed in Japan.
(C) They appear to be in motion once in a while.
(D) The collision of some particles causes quantum leaps.

答案:登入後查看
統計: A(12), B(30), C(94), D(331), E(0) #1806268

詳解 (共 4 筆)

#3389992
(A) Auroras come in ...
(共 359 字,隱藏中)
前往觀看
11
0
#3219870
Charged particles wi...
(共 255 字,隱藏中)
前往觀看
2
0
#2943667
Auroras的情況如何?(A)它們只能...
(共 81 字,隱藏中)
前往觀看
1
0
#7308633
50. 關於極光,下列哪一項是正確的?
(A) 極光只能以弧形或漩渦狀出現。
(B) 最壯觀的極光通常在日本觀測到。
(C) 極光偶爾看起來會運動。
(D) 某些粒子的碰撞會導致量子躍遷。
0
0