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【简答题】
确定函数 的定义域，并讨论此函数在其定义域上的连续性．
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皮皮学刷刷变学霸
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【单选题】．— Why didn’t you tell me the truth that day? — I _____, but you _____ for Fuzhou when I went to see you．
A.
did; would leave
B.
would; have left
C.
would have; had left
D.
had; left
【单选题】I found Henry looked ________ than last time when I went to see him. [ ]
A.
better
B.
well
C.
good
D.
worrying
【简答题】美元标价法是以( )为单位货币或基础货币,( ) 为报价货币。
【单选题】She ______ when I went to see her.
A.
is reading
B.
have read
C.
was reading
D.
reads
【单选题】She _____ the room when I went to see her .
A.
doesn’t clean
B.
isn’t cleaning
C.
wasn’t cleaning
【单选题】_______, when I went to town to see my sick teacher, he said to me, “I’ll come back to school again _______.”
A.
One day; the other day
B.
Some day; one day
C.
Some day; the other day
D.
The other day; some day
【单选题】公路运输一般即指（ ），它的主要优点是机动灵活、使用方便和实现门到门的直达运输，对客货运量大小具有很强的适应性。
A.
轿车运输
B.
大客车运输
C.
大货车运输
D.
汽车运输
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