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【判断题】
自旋-晶格,也称为横向。高能磁核通过与周围粒子之间的相互作用将能量传递给周围环境,而自身回到低能态的过程。( )A.
正确
B.
错误
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【单选题】The mother told the little boy to do all the things______.
A.
on himself
B.
on his own
C.
all himself
D.
of his own
【简答题】小题1: The ____ Sunday in May is Mother’s Day. (two) 小题2:The teacher told us not to go__alone in the river, (swim) 小题3: I want to be an__when I grow up. (invent) 小题4: Shouting in public is_. (polite) 小题...
【单选题】关于饭店选址要素的描述不正确的是( )。
A.
饭店类型主要取决于城市的大小
B.
饭店规模取决于客源市场的情况
C.
饭店的舒适程度取决于城市地段的地理位置
D.
饭店建筑的选址应选择适宜地段
【单选题】The writer did not learn the truth until
A.
her sister told her about it
B.
her mother told her about it
C.
her sister told her mother about it
【简答题】When Houdini tried to call her mother, he was told that ______.
【单选题】某企业生产一种产品,该产品的年产销量为10000件,售价为10元/件,单位变动成本为2元,则该产品的边际贡献总额是( )元。
A.
20000
B.
70000
C.
100000
D.
80000
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