By the time he graduated from high school, he_______

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By the time he graduated from high school, he________(learn) five thousand words.

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考题 _____ time, he’ll make a fist－class tennis player. A、Having givenB、To giveC、GivingD、Given

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考题 He________ （按下）the button and the doorbell rang.

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考题 “Itprovidesreliable,high－speed,time－definiteservice.”译成中文是:它能提供可靠、快速、定时服务。( ) 此题为判断题(对，错)。

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考题下面关于time库引用不正确的是() A、fromtimeimportstrftimeB、fromtimeimport*C、importtimeD、from*importtime

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考题 2． Lily and Lucy often leave__________ school __________ half past seven．A．from，toB．for，inC．to，fromD．for，at

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考题 Relaxing，sad and difficult are________（描述） words．

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考题下面关于time库引用不正确的是：A．from time import strftimeB．from time import *C．import timeD．from * import time

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考题下面关于time库引用不正确的是？‪‪‪‪‪‪‪‪‪‪‪‫‪‪‪‪‪‪‫‪‪‪‪‪‪‫A．import timeB．from time import strftimeC．from time import *D．from * import time

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考题以下程序产生的是占空比____的时钟信号？ parameter High_time = 5,Low_time = 20; reg clk; always begin clk = 1; #High_time; clk = 0; #Low_time; EndA．20%B．10%C．40%D．50%

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