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【单选题】
“对任意给定的 总存在整数N,当 时,恒有 ”是数列 收敛于a的___A.
充分条件
B.
必要条件
C.
充要条件
D.
非充分必要条件
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举一反三
【单选题】Why do William of Baskerville and his novice Adso of Melk come to the remote Benedictine monastery in northern Italy at the end of the year 1327?
A.
To take shelter from a snowstorm
B.
To study in the abbey's famed library
C.
To ask for asylum from the Holy Inquisition
D.
To partake in a religious debate about the roles of monasteries
【单选题】Why do novice teacher often have problems giving clear instructions?
A.
Their language proficiency is low
B.
They are fresh form the university
C.
Their instructions are too short
D.
They are not able to target their instructions to the level of the learners
【简答题】自行寻找老年人照片(最好是身边老人),对图中老人进行面部修整,要求头发进行染色、牙齿美白效果、去皱和衣服调整颜色及图案。
【单选题】__________ transport is the transportation of goods through a pipe. Most commonly, liquid and gases are sent, but pneumatic tubes that transport solid capsules using compressed air are also used.
A.
Air
B.
Rail
C.
expressway
D.
ship
E.
Pipeline
F.
tunnel
【单选题】Why do novice teacher often have problems giving clear instructions?
A.
Their language proficiency is low
B.
They are fresh from the university
C.
Their instructions are too short
D.
They are not able to target their instructions to the level of the learners
【单选题】Why do novice teachers often have problems giving clear instructions?
A.
Their language proficiency is low
B.
They are fresh form the university
C.
Their instructions are too short
D.
They are not able to target their instructions to the level of the learners
【判断题】Passengers mustn ’ t carry dangerous articles such as compressed gases, weapons, explosives, corrosives, or inflammable on to the plane.
A.
正确
B.
错误
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