While making recordings of the TV broadcast signal, if we choose the SP mode, we will have
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采用搁置法安装明龙骨饰面板时应留有板材安装缝，每边缝不宜大于()。
A. 1mm
B. 0.9mm
C. 0.8mm
D. 0.7mm
可以靠吊顶工程的龙骨承重的设备是()。
A. 重型设备
B. 喷淋头
C. 电扇
D. 大型吊灯
What does the author imply with the movie Sideways？
A. Happiness can be found through pains and efforts.
B. Happiness comes when everything dies.
C. Happiness makes sadness deeper.
D. Happiness is not a good thing.
普通混凝土划分()个等级，最高等级为()。
A. 12，C60
B. 13，C80
C. 14，C80
D. 13，C60
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