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【单选题】
经过直线x-y=0与直线x+y=2的交点,且与直线3x-y+1=0垂直的直线方程为( )。A.
x+3y+4=0
B.
x+3y-4=0
C.
x-3y+4=0
D.
x-3y-4=0
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举一反三
【单选题】As used throughout the passage, the term 'common' is closest in meaning to which of the following?
A.
Ordinary.
B.
Shared.
C.
Simple.
D.
Popular.
【单选题】The underlined word 'bland' in the last paragraph is closest in meaning to which of the following words?
A.
Salty.
B.
Tasteless.
C.
Delicious.
D.
Dull.
【单选题】Why did the author spend a white Christmas?
A.
It is white.
B.
The food is white.
C.
It snowed that day.
D.
The house is white.
【单选题】Which kind of house fo they live in ?
A.
thatched cottages
B.
semi-detached houses or terraced houses
C.
detached houses
【单选题】Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?
A.
Sub-cooled liquid
B.
Sub-cooled vapor
C.
Superheated vapor
D.
Liquid
【单选题】Why did the author offer a sporting suggestion?
A.
Because the CTA paid little attention to the incident.
B.
Because the bus driver had not been fired.
C.
Because he wanted to threaten (威胁) the CTA people.
D.
Because he thought the punishment was a light one.
【简答题】如果编译的时候提示“找不到头文件”,一般是( )出了问题。
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