在学术诚信建设中要逐步建立起（）相结合的约束模式。
A.法律
B.规律
C.纪律
D.自律
参考答案：A, C, D
Look at the timetable. Hurry up! Flight 4026 _____ off at 18:20. [ ]
A. takes
B. took
C. will be taken
D. has taken
腹泻症可以通过按摩（）来调理。
A、松果体反射区
B、食欲中枢反射区
C、失眠点反射区
D、止泻点反射区
