Iftheofficeronwatchisinanydoubtastothepilot’sactions,orintentions,heshould().
A: notifytheCaptainassoonaspossible
B: seekclarificationfromthepilot
C: takeactionbyhisownjudgment
D: ceasethedutyofpilot'satonce
A: notifytheCaptainassoonaspossible
B: seekclarificationfromthepilot
C: takeactionbyhisownjudgment
D: ceasethedutyofpilot'satonce
举一反三
- Asadutysailor,heshould(). A: keepagangwaywatch B: oftenlookaroundtheship C: hoistandlowernationalflagontime D: A+B+C
- IntheUnitedStates,whenamangreetsanAmericanbusinesswoman,heshould A: shakehandsgentlybecausesheisawoman B: shakehandsfirmlyandhaveeyecontact C: notshakehands D: shakehandsfirmlyanddonothaveeyecontact
- No matter who he is, heshould accustom himself to _____(accept) new things
- 20A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、120、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、130、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、A、B、C、D、140、A、B、C、D、A
- 以下集合A={a,b,c,d}上关系,其中( )是等价关系。 A: {(a,a),(a,d),(b,b),(b,c),(c,b),(c,c),(d,a) } B: {(a,a),(a,b),(b,a),(b,b),(c,c),(c,d),(d,c),(d,d)} C: {(a,a),(b,b),(b,c),(c,b),(c,c),(d,a),(d,d)} D: {(a,a),(a,b),(b,a),(b,b),(b,c),(c,b),(c,c),(d,d)}