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【简答题】
I'm Lin Min. My sister Lin Li is a teacher, but she isn't in Beijing with us. She works in a small school in Yushu in Qinghai. She works very hard . Every morning after breakfast, she goes to four of her students' homes and brings them to school. At eight o'clock, the students have the first morning class. After four classes, they have lunch at school. During the lunch time, Lin Li tells some stories to them. The students like listening to her stories. The afternoon classes start at 13:00 and finish at 16:00. After school, Lin Li sends the four students back to their homes. In the evening, she doesn't watch TV or play computer games, She usually checks her students' homework. Then she goes to bed at 22:00.
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举一反三
【简答题】黄铜是以 为主加元素的铜合金,H70表示铜的质量分数为 。
【单选题】黄铜是以 为主加元素的铜合金。
A.
Pb
B.
Fe
C.
Sn
D.
Zn
【判断题】黄铜是以 Zn为主加元素的铜合金。
A.
正确
B.
错误
【单选题】一般性货币政策工具是对货币供应量或信用总量进行调节和控制的政策工具,如( )就是一般性货币政策工具。
A.
窗口指导
B.
优惠利率
C.
再贴现政策
D.
基础货币
【判断题】黄铜是以锌为主要合金元素的铜基合金,青铜是在铜中加入的合金元素不是以锌和镍为主的铜基合金。
A.
正确
B.
错误
【简答题】黄铜是以 为主加元素的铜合金,如 H68 表示含铜量为 ,含锌量为 的黄铜。
【单选题】以下不属于青少年性冲动的表现形式是()。
A.
性幻想
B.
性兴奋
C.
性梦
D.
自慰
【简答题】黄铜是以 为主加元素的铜合金。
【简答题】黄铜是以( )为主加合金元素的铜合金;锡青铜是以( )为主加合金元素的铜合金。
【单选题】黄铜是以 为主要添加元素的铜合金
A.
B.
C.
D.
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