The school is empty at weekends, 　　 the security guards. A.except B.beside C.except for D.besides...

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Whydon'tyoustayhereovertheweekend?ShesaiD._______

She said why didn't you stay there over the weekenD. She said why you don't stay there over the weekenD. She asked me not to stay there over the weeken D. She suggested I should stay here over the weekenD.

下列函数结果为.T.的是

EMPTY(SPACE(5)) EMPTY(.NULL.) ISNULL(") ISNULL()

{0}∈{0，1.2} ∅＝{0} 0∈∅ ∅∈{∅}

下列说法正确的个数是 ①∅=0②∅={0}③∅={∅}④0∈∅⑤0∈{0}⑥∅∈{∅}⑦∅⊊{∅

3 4 5 6

-Isthereelseintheclassroom-Itisempty.islisteningto

汉译英空舱证书清洁证书正确的翻译为

Certificate of empty tank；Certificate of fumigation Certificate of fumigation；Certificate of cleanliness Certificate of empty tank；Certificate of cleanliness Certificate of cleanliness；Certificate of empty tank

下列表述正确的是

∅={0} ∅⊆{0} ∅⊇{0} ∅∈{0}

---Billwouldyouliketogocampingsometimethismonth?--

Sure, Jack wants to go too. I’d love to, but I heard it’s too croweD. Fine, as long as it’s weeken By the way, who’s going? D.Sounds great, when can you get time off from work?

下列程序的执行结果是______ STORETOA STORE.NULL.TOB STOREO

---Billwouldyouliketogocampingsometimethismonth?--

Sure, Jack wants to go too. I’d love to, but I heard it’s too croweD. Fine, as long as it’s weeken By the way, who’s going?D.Sounds great, when can you get time off from work?

第三节默写课文共10空格每空格1分满分10分Unit4Finallyabout2.6milliony

根据下面提供的情景写一段不少于50词的接续文字Markisamiddleschoolstudent.

Asad28tookplaceinNorthCarolinaduringtheCivilWar

silent locked empty open

下列程序的执行结果是______STORETOASTORE.NULL.TOBSTOREOTOCISN

WhenSheilalefthomethismorninghermotheradvisedherto

下列说法正确的是

0∈∅ 0∪∅＝{∅} 0⊆{0} ∅⊆{0}

Asad28tookplaceinNorthCarolinaduringtheCivilWar

silent locked empty open

关于以下集合关系表示不正确的是

∅∈{∅} ∅⊆{∅} ∅∈N* ∅⊆N*