用下列句子前括号里单词的适当形式填空并翻译句子。1.（fair）"It's____！"Johncomplained.2.(end)I’mfedupwithyour____complaining.3.(close)Theliftingofthecurtain____abeautifulwinterscene.4.(appoint)Myparentswere_____withmebecauseIfailedtheexam.5.(spell)Thebookcontainsquiteafew_____words;theproof-readerreallyshouldhavebeenmorecareful.6.(understand)Don’t____hissi-lenceforlackofinterest;actuallyheisveryinterestedinthesubjectwearediscussingnow.7.(load)TheAmericanshiparrivedattheportyesterday,andworkersare_____itscontentsintheharbornow.8.(certain)Ihadalongtalkwithhimyesterday,butI’mstill_____abouthisintention.9.(regular)Thatyoungmotherdoesnotlike_____workinghours.10.(proper)Jokingwithotherpersonsatthisofficialcelebrationis_____behaviorforsuchaseriousoccasion.

用下列句子前括号里单词的适当形式填空并翻译句子。1.（fair）'It's____！'Johncomplained.2.(end)I’mfedupwithyour____complaining.3.(close)Theliftingofthecurtain____abeautifulwinterscene.4.(appoint)Myparentswere_____withmebecauseIfailedtheexam.5.(spell)Thebookcontainsquiteafew_____words;theproof-readerreallyshouldhavebeenmorecareful.6.(understand)Don’t____hissi-lenceforlackofinterest;actuallyheisveryinterestedinthesubjectwearediscussingnow.7.(load)TheAmericanshiparrivedattheportyesterday,andworkersare_____itscontentsintheharbornow.8.(certain)Ihadalongtalkwithhimyesterday,butI’mstill_____abouthisintention.9.(regular)Thatyoungmotherdoesnotlike_____workinghours.10.(proper)Jokingwithotherpersonsatthisofficialcelebrationis_____behaviorforsuchaseriousoccasion.

数列7, 7, 7, 7, 7, 7, …为等差数列

PH值是溶液酸碱度的一种表示方法，（）时，溶液呈中性；（）时，溶液呈酸性；（）时，溶液呈碱性。 A: PH=7、PH>7、PH<7 B: PH=7、PH<7、PH>7 C: PH>7、PH=7、PH<7 D: PH<7、PH=7、PH>7

书挂期限为（）天、口挂期限为（）天、印挂期限为（）天。 A: 7、7、7 B: 7、7、10 C: 7、5、7 D: 7、5、10

7 7=?

17×(-7)÷(-17)×7等于（　　） A: 1 B: 49 C: -7 D: 7

数字推理：4/7，1，10/7，13/7（） A: 12/7 B: 11/7 C: 15/7 D: 16/7

对于YOLO v1算法，网络的输出维度是多少（假设每张图划分为7*7网格，每个网格预测2个边框，识别的物体类别有30个）？ A: 7*7*40 B: 7*7*30 C: 7*7*32 D: 7*7*42

元素周期表含有（）个周期，（）个族。 A: 7；7 B: 7；18 C: 7；16 D: 7；14