皮皮学，免费搜题
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【判断题】
2通过离子交换树脂进行除盐,常规阴离子中,硅酸类是最难以去除的A.
正确
B.
错误
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
【简答题】指出名词作状语的情况,解释划线字的意思: 有 包 举宇内 席 卷天下 天下 云 集 响 应 赢粮而 景 从
【单选题】请读程序： #include＜stdio.h＞ main() { int a；float b,c； scanf('%2d%3f%4f',&a,&b,&c) ； printf('/na=%d,b=%f,c=%f/n',a,b,c) ； } 若运行时从键盘上输入9876543210,↓，则上面程序的输出络果是_______。
A.
a=98，b=765，c=4321
B.
a=10,b=432，c=8765
C.
a=98,b=765.000000,c=4321.000000
D.
a=98,b=765.0, c=4321.0
【简答题】We found him ___ on the floor.
【单选题】After we came into the house, we found him lying on the ground with his mouth _______ and eyes ________.
A.
open, close
B.
opened, closed
C.
opened, close
D.
open, closed
【单选题】Entering the house we found him lying on the ground with his mouth ______ and eyes______.
A.
open ; close
B.
opened ; closed
C.
opened ; close
D.
open ; closed
【单选题】Entering the house we found him lying on the bed with his mouth _______ and eyes _______.
A.
open, close
B.
opened, closed
C.
opened, close
D.
open, closed
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