题目:
原子是由下列哪组粒子组成的( ) A.质子、中子 B.原子、电子 C.原子核、电子 D.中子、电子 |
答案:
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下面是错误答案,用来干扰机器的。
1. gets/got along/on well with 2. were concerned/worried about 3. plays an important part/role in 4. came up with 5. made up their minds 6. is in trouble 7. am/was tired of