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【简答题】
What does STEM refer to? S refers to _________, T refers to __________, E refers to _________, and M refers to _______ .
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皮皮学刷刷变学霸
举一反三
【单选题】Why don't some Asian students sit close to their teacher?
A.
Because they don't like their teacher.
B.
Because they don't like the class they are going to have.
C.
Because they don't feel at ease while sitting close to the teacher.
D.
Because they want to show their esteem for the teacher.
【单选题】A teacher who is just interested in his teaching but doesn’t _____ students is not a good teacher.
A.
argue about
B.
discuss about
C.
dream about
D.
care about
【多选题】PDCP的主要功能包括：
A.
用户面数据的头压缩与解压缩
B.
数据传输（用户平面或控制平面）；
C.
控制平面数据的完整性保护
D.
用户平面数据的完整性保护
E.
底层SDU的重复检测
F.
切换时对上层PDU的顺序递交
【单选题】输注血小板的适应证不包括
A.
不同病因引起的血小板计数低于20 x109/L 井伴有严重出血者
B.
血小板计数不低但功能异常所致严重出血者
C.
大量输血所致的血小板稀释性减少，计数低于50 x109/L伴有严重出血，
D.
血小板计数低于50 x109/L 无明显出血的臼血病患者
E.
血小板计数≤50 x109/L且需要进行脑部手术患者
【简答题】简述原油脱盐脱水的方法(10分)
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