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【单选题】
We uncovered numerous explanations for the undesirable effects of working on students’ engagement in school except____
A.
they have less time to devote to school assignments
B.
they get too tired from work to study
C.
they view school more rewarding
D.
they take drugs and use alcohol more often than non-working students
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】治疗高血压长期大剂量应用噻嗪类利尿剂可引起（）
A.
低钾、低钠血症，高尿酸血症
B.
低钠、低钙、低尿酸血症
C.
低钠、低钙、高尿酸血症
D.
低钠、高钾血症
E.
低钠、低钾、高镁血症
【单选题】The characteristics of B cell response to TI-2 antigen include
A.
TI-2 antigen has duplicate epitopes
B.
Activating only mature B cells
C.
BCR excessive cross-linking leads to immune tolerance
D.
Inducing isotype switching of antibodies
E.
All of the above