问题
单项选择题
德布罗意提出（），揭示了微观世界的波粒二象性。
A、量子假说
B、测不准原理
C、物质波假说
D、光量子假说
答案
参考答案：C
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德布罗意提出（），揭示了微观世界的波粒二象性。
A、量子假说
B、测不准原理
C、物质波假说
D、光量子假说
参考答案：C
I have two pen pals. One is from . Her name is Jessica. She lives her parents in Toronto. She is outgoing(外向的) and smart girl .She likes singing and .Chinese music is her favorite. So she often writes letters to me to talk Chinese music. The other from Tokyo .She is a girl .She keeps many cats at home, she likes little animals so much. In her letters, she often tells me about her pets and interesting Japanese cartoons .I often write to her Chinese, because she is Chinese by herself.
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