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【单选题】
24 Cr 的价层电子构型为A.
3d 5 4s 1
B.
3d 4 4s 2
C.
3d 5 4s 2
D.
3d 6 4s 0
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反馈参考答案：
举一反三
【单选题】On the bank of the river, we found him ________ on a beach, with his eyes _____ on a kite in the sky.
A.
seated; fixing
B.
sitting; fixing
C.
seated; fixed
D.
sitting; being fixed
【单选题】On the bank of the river, we found him _____on a bench, with his eyes _____on a kite in the sky.
A.
seated; fixing
B.
sitting; fixing
C.
seated; being fixed
D.
sitting; fixed
【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】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】On the bank of the river, we found him _______ on a beach, with his eyes _____on a kite in the sky.
A.
seated; fixing
B.
sitting; fixing
C.
seated; being fixed
D.
sitting; fixed
【单选题】On the bank of the river, we found him _______on a bench, with his eyes_______ on a kite in the sky.
A.
seating; fixed
B.
sitting; fixing
C.
seated; fixing
D.
sitting; fixed
【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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