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【单选题】
一个2p电子可以被描述为下列六组量子数之一 （1）2、1、0、+1/2 （2）2、1、0、-1/2 （3）2、1、1、+1/2 （4）2、1、1、-1/2 （5）2、1、-1、+1/2 （6）2、1、-1、-1/2 试指出氮原子电子层结构中，2P 3 三个电子组合中正确的是（）A.
（1）（3）（4）
B.
（2）（4）（6）
C.
（2）（3）（5）
D.
（2）（5）（6）
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【单选题】Americans usually consider themselves a friendly people. Their friendships, however, tend to be shorter and more casual than friendships among people from other cultures. It is not uncommon for Americ...
A.
American culture
B.
American society
C.
Americans' activities
D.
Americans' personality
【单选题】Americans usually talk with strangers about their___________．
A.
studies
B.
cultures
C.
hobbies
【简答题】When Americans are more than 10 minutes late to an appointment, they usually ______.
【单选题】回答题。 Americans&39; personality Americans usually consider themselves a friendly people. Their friendships, however, tend to be shorter and more casual than friendships among people from other cultures...
A.
Americans do not like to depend on other people
B.
Friendships among Americans tend to be casual
C.
Americans know a lot about international affairs
D.
Americans always seem to be on the go
【简答题】建筑物的门厅不算建筑面积，大厅按一层计算建筑面积。
【单选题】Americans who consider themselves ______ in the traditional sense do not usually hesitate to heap criticism in domestic matters over what they believe is oppressive or wasteful.
A.
pedestrian
B.
penchant
C.
patriarch
D.
patriotic
【单选题】Americans who consider themselves ______ in the traditional sense do not usually hesitate to heap criticism in domestic matters over what they believe is oppressive or wasteful.
A.
pedestrian
B.
penchant
C.
patriotic
D.
patriarch
【单选题】Americans usually consider themselves a friendly people. Their friendships, however, tend to be shorter and more casual than friendships among people from other cultures. It is not uncommon for Americ...
A.
American culture
B.
American society
C.
Americans' activities
D.
Americans' personality
相关题目：
【单选题】Americans usually talk with strangers about their___________．
A.
studies
B.
cultures
C.
hobbies
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