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【单选题】
硅二极管两端加上正向电压时，( )A.
若超过0.3V通;
B.
若超过死区电压时就导通;
C.
立即导通
拍照语音搜题，微信中搜索"皮皮学"使用
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】–Alice, why didn’t you comeyesterday? --I _______,but I had an expectedvisitor.
A.
had
B.
would
C.
was going to
D.
did
【单选题】Why was the Pigeon upset at Alice?
A.
The Pigeon took Alice for its enemy.
B.
The Pigeon took Alice for the serpent.
C.
The Pigeon thought Alice was a serpent trying to get at the eggs in her nest.
D.
The Pigeon thought Alice would eat it.
【单选题】Why couldn't Miguel be the guest of honor at the Sunrise Spectacular of de la Cruz?
A.
Because his skeletal transformation would be complete at sunrise.
B.
Because he didn't want to be present.
C.
Because Hector prevented him from doing so.
D.
Because his family members prevented him from doing so.
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