皮皮学，免费搜题
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搜题
【单选题】
重型再生障碍性贫血患者死亡的主要原因是A.
皮肤黏膜出血
B.
脑出血和严重感染
C.
败血症
D.
皮肤感染
E.
肺部感染
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】关于下列三种常见高分子材料的说法正确的是( )
A.
顺丁橡胶、涤纶和酚醛树脂都属于天然高分子材料
B.
顺丁橡胶是通过缩聚反应合成的
C.
合成涤纶的单体均可发生酯化反应
D.
酚醛树脂是通过加聚反应合成的
【单选题】What can learn about Uncle Frank?
A.
He looked remarkably like the Superman.
B.
He was the strongest man in the block the author lived.
C.
He was living with the author and her mom while waiting to find a job.
D.
He could do lots of trick and walk on his hands.
【单选题】下列哪个属性是设置首行缩进的( )。
A.
letter-spacing：
B.
text-transform：
C.
text-indent：
D.
text-align：
【简答题】Today I took Frank to have a training class (培训课). We got there earlier than most of the other dogs and owners . Mr. Brown helped us teach our dogs some skills (本领). When the dog did it, he said, “Goo...
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