Timedelayedordelayedaction-typefusesaredesignedto().
A. preventgroundsinbranchcircuits
B. preventopensinmotorcircuits
C. permitmomentaryoverloadswithoutmelting
D. guardlightingandelectroniccircuits
领带是西服的灵魂,在不同的场合应当佩戴不同款式的领带,下面哪种情况最适宜()。
A. 在隆重的场合佩戴花色领带
B. 在肃穆的场合佩戴无花的单色领带
C. 正式场合解开领带
D. 将领带放在羊毛衫外
Thereasonfortheobligationtoloadafullcargo()thatotherwisetheShipownerwouldlosefreightonaccountofsomepartoftheship’scarryingcapacitynotbeingutilized.
A. is
B. makes
C. has
D. takes
Themaindifferencebetweenamotorcontrolcircuitcontaininglowvoltageprotectionandlowvoltagereleaseisthatthelattercontains().
A. amagneticoperatingcoil
B. normallyopenlinecontacts
C. thermal-overloadprotection
D. amomentary-contactstartbutton