pulse repetition frequency, PRF
pulse repetition frequency, PRF
相关考题:
营销数据库管理的基本法则RFM法则是()的缩写。 A:Recency,Finance,MonetaryB:Responsibility,Finance,MoneyC:Responsibility,Frequency,MonetaryD:Recency,Frequency,Monetary
关于脉冲重复频率(PRF)与取样门宽度,叙述正确的有A、PRF是单位时间(s)发射短脉冲的次数,在PW中PRF是个重要参数B、PRF是以kHz计,而超声波频率是以MHz计,是两个相同的概念C、调节PRF可选择PW取样门距探头位置的距离,它限定了仪器最大探测深度D、PRF调定后,可再改变取样门宽度(L)E、连续波多普勒可测高速血流,脉冲多普勒测速不受PRF的限制
GivenaclassRepetition:1.packageutils;2.3.publicclassRepetition{4.publicstaticStringtwice(Strings){returns+s;}5.}andgivenanotherclassDemo:1.//insertcodehere2.3.publicclassDemo{4.publicstaticvoidmain(String[]args){5.System.out.println(twice(”pizza”));6.}7.}Whichcodeshouldbeinsertedatline1ofDemo.javatocompileandrunDemotoprintpizzapizza”?()A.importutils.*;B.staticimportutils.*;C.importutils.Repetition.*;D.staticimportutils.Repetition.*;E.importutils.Repetition.twice();F.importstaticutils.Repetition.twice;G.staticimportutils.Repetition.twice;
Given a class Repetition:Which code should be inserted at line 1 of Demo.java to compile and run Demo to print pizzapizza?() A.import utils.*;B.static import utils.*;C.import utils.Repetition.*;D.static import utils.Repetition.*;E.import utils.Repetition.twice();F.import static utils.Repetition.twice;G.static import utils.Repetition.twice;
You have a MAG Series device with IP address 10.0.1.5 and hostname ad .pulse.local acting as an IF-MAP Federation server. The subject name of the device certificate on this server is ad .pulse.local.Which server URL must you configure on the IF-MAP clients communicating with this IF-MAP Federation server?()A. https://acl.pulse.local/dana-ws/soap/dsifmapB. http://acl.pulse.local/dana-ws/soap/dsifmapC. https://acl/dana-ws/soap/dsifmapD. http://10.0.1.5/dana-ws/soap/dsifmap
OFDM的英文是()A.OverloadFrequencyDivisionMultiplexingB.Orthogonal?Frequency?Division?MultiplexingC.Overwhelming?Frequency?DivisionMultiplexingD.Outstanding?Frequency?Division?Multiplexing
1、5.对债券现金流的贴现的函数以下那种写法是正确的 ()A.A cfs <- 100 * (rep(couponRate/frequency, n) + c(rep(0, n ),1))B.B cfs <- 100 * (rep(couponRate/frequency, n-1) + c(rep(0, n - 1),1))C.C cfs <- 100 * (rep(couponRate/frequency, n) + c(rep(0, n - 1))D.D cfs <- 100 * (rep(couponRate/frequency, n) + c(rep(0, n - 1),1))
用户体验评价指标体系中包含PULSE指标体系