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【单选题】
细胞是生物体结构和功能的基本单位.绝大多数生物都具有细胞结构,下列生物不具有细胞结构的是(  )
A.
枯草杆菌
B.
烟草花叶病毒
C.
草履虫
D.
卷柏
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【简答题】4 Replace the British English words with American English words. ► When does the shop open? store 1 Where are you going for your holiday? ____ 2 It’s upstairs, so we’ll need to take the ...
【判断题】Be polite when you to colleagues.
A.
正确
B.
错误
【简答题】Fill in the blanks with the expressions given below. Change the forms where necessary. by the time instead of feel like in the end get on/off pull over head for result in tap (sb.) on the shoulder tur...
【单选题】It’s polite (礼貌) to say “_________” to your parents (父母) when you leave (离)home for school.
A.
Goodbye         
B.
Hello           
C.
Good morning
【判断题】Be polite when you talk to the attendee.
A.
正确
B.
错误
【简答题】Fill in the blanks with these passions given belowchange the forms when necessary. by the time. feel like . get on/off. head for instead of. in the end. pull over. result in. tap somebody on the shou...
【判断题】计算机网络不管使用哪种拓扑结构,其性能都是相同的。( )
A.
正确
B.
错误
【判断题】债券的利率期限结构是指债券的到期收益率与到期期限之间的关系。 ( )
A.
正确
B.
错误
【单选题】在一个有78个元素的顺序表中插入一个新元素并保持原来顺序不变,平均要移动( )个元素。
A.
4
B.
39
C.
40
D.
30
【单选题】The author cites all the following except that______to show that newspapers are not killed.
A.
newspapers have the most to lose from the Internet
B.
the web has hastened the decline of the circulation
C.
newspapers won't die out in the U. S. until 2043
D.
ever more young people are getting their news online
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