皮皮学，免费搜题
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【单选题】
如图所示,VD1.VD2的状态是( )
A.
VD1 导通 VD2 截止
B.
VD2 导通 VD1 截止
C.
VD1.VD2 通
D.
VD1.VD2 都截止
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
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【简答题】Listen and choose. 听问句，选择最佳答语。 (     ) 1. A. Yes, I did. (     ) 2. A. He is often at home. (     ) 3. A. We did our homework. (     ) 4. A. She's 12 years old. (     ) 5. A. I'm sorry to hear that. B...
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【简答题】阅读理解。 Frank bought a new doorbell, but nobody seemed to notice it. When his friends came, they knocked heavily at the door. Frank was not happy about it. One day a friend came to see Frank. He knocked...
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【简答题】句型转换，按括号的要求改写句子。 1. She found it interesting to listen to music.(同义句) She ______ ______ ______ music. 2. Maybe you can find it somewhere.(否定句) Perhaps you ______ ______ ______ ______. 3. You must look...
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