题型:判断题 The speaker ________have criticized the paraprofessionals, knowing full well that they were seated in the audience.A.should not toB.must notC.ought not toD.may not 查看答案
题型:判断题 采用同步表法对同步发电机并车时,下列说法正确的是()。A.并车时,频差越小越好B.并车时,同步表应沿“慢”的方向旋转C.并车完毕及时断开整步表D.并车合闸应在同步表的指针指到“同相标志点”为好 查看答案
题型:判断题 我国卫生部发布的《文化娱乐场所卫生标准》(GB9664-1996)规定影剧院场次的间隔时间及空场时间的分钟数应不少于()。A.30,20B.20,10C.30,10D.60,30E.60,10 查看答案