基层行计划专管人员要根据补贴资金到位监测台账,填制()表,准确反映补贴资金拨补企业情况。
A.401
B.403
C.404
D.405
参考答案:A
While Helen __________ the guitar, her mother came in.
A.was playing
B.is playing
C.played
D.plays
如图所示,伸臂梁F=qa/2,M=2qa2,已知q、a,则B点的约束反力是()。
A.qa
B.qa/2
C.3qa/2
D.2qa