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【简答题】
碳素结构钢牌号的含义是：Q表示______，Q后面的数字表示______，数字后的A、B、C、D表示______，牌号末尾的“F”表示______，末尾是“b”，则表示______。
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反馈参考答案：
举一反三
【单选题】According to the text, a drive - in window is ______.
A.
a car window from which you can see the driver
B.
a window in the restaurant from which you get your takeout in the car
C.
a place where you check the mechanic condition of your car
D.
an entrance where you return the used plates after eating
【单选题】According to the text, a drive-in window is a ________.
A.
car window from which you can see the driver
B.
window in the restaurant from which you get your meal in the car
C.
place where you check the mechanic condition of your car
D.
entrance where you return the used plates after eating
【单选题】编写一个新的应用程序前,首先要建立____。Keil μVision3把用户的每一个应用程序设计都当作一个工程,用工程管理的方法把一个程序设计中所需要用到的、互相关联的程序链接在同一工程中。
A.
Project（工程）
B.
.hex文件
C.
.uv2文件
D.
.exe文件
【单选题】It is over _______ from Shijiazhuang to Beijing. [ ]
A.
three hour's drive
B.
three hours' drive
C.
three hours' drives
D.
three hours drive
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