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【单选题】
圆柱被一个与之轴线倾斜的平面截切,所得交线是:A.
圆
B.
（直线）
C.
椭圆
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举一反三
【单选题】What is implied but not stated?
A.
The Keyling which sailed around the tip of the Cape of Good Hope came to London only by accident.
B.
The world measures less than 30,000 miles in circumference.
C.
The Cape of Good Hope is at the southern tip of Australia,
D.
Today many Londoners still believe that many Chinese ships are not seaworthy.
【单选题】What is the original meaning of the tip?
A.
It is to reward the efforts of good service.
B.
It is a promise of on-time service.
C.
It is used to reduce uncomfortable feelings of inequality.
D.
It serves no useful function.
【单选题】What is the term that indicates his literary idea?
A.
The tip of iceberg
B.
Narrative perspective
C.
Flat character and round character
D.
Sequence of narration
【单选题】What could be Americans’ attitude towards paying without tip?( )
A.
Americans never pay the tip.
B.
Paying without tip may irritate or upset some Americans.
C.
Tip is not a must thing in America.
D.
Americans pay the same amount of tip for everything. 答案：B
【简答题】What occurs when the pH-sensitive tip of a newly manufactured glass electrode is immersed in water?
【单选题】Tip 3 and Tip 4 give you some advice on what you should do when you are ______.A.
A.
60. Tip 3 and Tip 4 give you some advice on what you should do when you are ______. A. inside a building
B.
outside a building
C.
in your house
D.
in a store
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