听音,判断句子正(√)误( ×)。 |
( )1. My aunt is beautiful. ( )2. My uncle is an actor. ( )3. My aunt works in Dongguan, but my uncle works in Beijing. ( )4. They often fly to Beijing. ( )5. My aunt is happy. |
.判断电路4.3的反馈组态,并计算电路的Au,ri,ro的值
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你能帮帮他们吗