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【单选题】
某微粒的结构示意图如右图所示,下列有关该微粒的说法 错误 的是 ( )。A.
该微粒的原子核内有11个质子
B.
该微粒在化学反应中易失去1个电子形成阴离子
C.
该微粒的原子核外有3个电子层，且其次外层电子数为8
D.
该微粒的核电荷数为11，整个粒子不显电性
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反馈参考答案：
举一反三
【单选题】一份考卷有3个问题,每个问题1分,班级中20%得3分,60%得2分,10%得1分,10%得0分,则平均得分()
A.
1.5
B.
1.9
C.
2.1
D.
2
E.
不知道班级中有多少人，所以不能算出平均得分
【单选题】A digital ring is locked on every newborn baby’s foot _______ they are taken by strangers out of the hospital.
A.
because
B.
when
C.
so that
D.
in case
【简答题】What’s a newborn baby’s reaction to a loud noise near him?
【单选题】The newborn's pseudomenstruation occurs
A.
1th to 3th days after birth
B.
3th to 5th days after birth
C.
5th to 7th days after birth
D.
7th to 9th days after birth
E.
9th to 11th days after birth
【单选题】Newborn babies candiscriminate between a man’s and a woman’s voice.
A.
treat
B.
express
C.
distinguish
D.
analyze
【简答题】In earlier researches on the newborn’s perception, scientists ________. A) ignored evidence contrary to their assumptions B) believed that perception of form. comes before perception of color and brig...
【简答题】4 电子零售巨头亚马逊将要尝试网上生鲜食品业务。
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