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【单选题】
IP数据报的标志位有三位,其中DF(Dont Fragment)位为1表示

还有分片
不能分片
片偏移量
分片数量加1
【简答题】
观察以下实例,说明汉语和英语在回答是非问句时的异同,并分析导致这种现象的原因。(1)你喜欢这部电影吗?—— a、是的,我喜欢。/ b、不,我不喜欢。(1’)Do you like this movie? —— a、Yes,I like it./ b、No,I dont like it.(2)你不喜欢这部电影吗?—— a、是的,我不喜欢。/ b、不,我喜欢。(2’)Dont you like this movie? —— a、No,I dont like it./ b、Yes,I like it.

【单选题】
11. -Will the foreigners have any problems talking with Chinese in 2008? -I dont think so. Now ______ the young ______ the old can speak some English.

either…or
not only… but also
neither…nor
both…or
【单选题】
-Johnson has promised us that he will help ?us out to his best ability. -I dont buy it. In my opinion, ?he _______ so kind.

has been
is
was
is being
【单选题】
What role does a teacher play in the following activity? While doing a writing task either individually or in groups, the students need to use a particular word they dont know. So they ask the teacher.

Controller
Assessor
participant
Resource-provider.
【单选题】
What role does a teacher play in the following activity? When a student has made a sentence with borrow, “I borrowed a paper to write a letter”, the teacher says, “Well, we dont say a paper, we say a piece of paper.”

Controller
Assessor
Organizer
Prompter.
【单选题】
若f(t)=t^3+1,则f(t^3+1)= ( )

t^3+1
t^6+2
t^9+2
t^9+3t^6+3t^3+2
【单选题】
某工程需水泥360t,甲地可供100t,原价210元/t,乙地可供120t,原价220元/t,丙地可供140t,原价230元/t,则水泥的加权平均原价为【】      

221.11元/t
220.00元/t
210.00元/t
230.00元/t
【单选题】
Don’tsmokehere,oryouwillbefined.-----Yes,thereisasign:No_________.<br/>

Smoke
Smoking
tosmoke
A.???smoked
【单选题】
T/T指的是

信汇
电汇
票汇
家信用证