原发性胆汁性肝硬化( )
A.血氨升高B.血清胃泌素升高C.血清ALP活力明显升高D.胃酸缺乏E.血清脂肪酶升高
参考答案:C
(6分)一个带正电的质点,电量q=2.0×10-9C,在静电场中由a点移到b点,在这过程中,除电场力外,其他力做的功为6.0×10-5J,质点的动能增加了8.0×10-5J,则质点的电势能 (填“增大”或“减小”)了 J,a、b两点间的电势差Ua-Ub为 V
We have been told that under no circumstances we can use the telephone in the office for personal affairs.
A.did we use
B.may we use
C.we may use
D.we could use