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【简答题】
从键盘输入一个浮点数,将其存储到一个 double 型变量中,然后利用表达式,将其四舍五入到三位小数后再次存入原来的变量,最后输出变量的值。例如输入“ 3.141593 ”,输出“ 3.142000 ”。 注意: 必须改变变量的值为三位有效数字,而不是用“ %.3lf ”的方式输出。 提示: double 型数据输入时, scanf 函数中的输入格式为 %lf
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举一反三
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A.
I think so.
B.
Bad luck.
C.
That's true.
D.
Thank you all the same.
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【单选题】"Excuse me. which movie are you waiting for? “The new Star Wars. We ______ here for more than two hours.”
A.
Waited
B.
wait
C.
would be waiting
D.
have been waiting
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【单选题】表示存储器的容量时，1MB的准确含义是( )。
A.
1米
B.
1024字节
C.
1024K字节
D.
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【单选题】- -Excuse me. Which is the way to the nearest park? ---- You may ask the policeman over there.
A.
.I'm not afraid I can't.
B.
.I' ve no idea.
C.
.I' m afraid I can't.
D.
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【单选题】—Excuse me. Which is the way to the police station? —Sorry, I'm new here. _______. [     ]
A.
Nothing serious.
B.
Good luck.
C.
Thank you all the same.
D.
Pleased to hear that.
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【单选题】-- Excuse me. Which carriage is this? --______________.
A.
This is Platform 8.
B.
This is the ticket office.
C.
This is Carriage No.2.
D.
This is the dinning car.
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to; to
B.
to; for
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for; for
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【单选题】---Excuse me. Which is the way to the post iffice? --- Sorry. I am new here. --- .
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I think so
B.
Bad luck
C.
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【单选题】---Excuse me. Which is the way to the post iffice? --- Sorry. I am new here. --- .
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