电调谐式高频头的电视机,V段正常,而U段不能收看,原因是()。
A.BU=0V
B.UAGC=0V
C.UT=0V
D.EM=0V
参考答案:A
— This is the first time I ______ with you.
— It's time that you ______ an end to this silly argument. [ ]
A. argue; put
B. have argued; put
C. argued; should put
D. have argued; will put
某船Δ=6987t,KG=5.83m,现将岸上总计重量为150t的货物悬挂在舱内距基线8.12m处,悬索长3m,装货后船舶初稳性高度改变()m。
A.0.111
B.-0.111
C.0.108
D.-0.108